Southern Austronesian *sa-puluq-at in numbers 10 to 19

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This post returns to a subject discussed in a 2010 conference paper (here). New facts are presented and the interpretation is slightly modified.

Several Philippine languages belonging to the South-Central Cordilleran subgroup in northern Luzon: Kankanay, Kalinga, Bontok, Ifugao, Balangaw, Inibaloi, have a conjunction reflecting Proto-South-Central Cordilleran *et [ət] ‘and, and then’. In the Central Luzon group of Philippine languages, Kapampangan, not in direct contact with the Cordilleran languages, has at ‘and’, reflecting either *et [ət] or *at. Tagalog, a Central Philippines language, has at ‘and’, which can only reflect *at, unless it is a loan from neighboring Kapampangan at ‘and’ (personal communications from L. Reid and R.D. Zorc, April 2007). Kapampangan is known to be a source of loanwords to Tagalog. Among the Central Cordilleran languages reflecting *et ‘and’, Isinai, Kalinga and a few others use a phonologically reduced form of that morpheme between pulu ‘ten’ and a following unit numeral. Thus in Kalinga, ‘ten’ is simpulu < *sa-n(g)a-puluq, but ‘eleven’ is simpu:lut osa (Tryon et al. 1995, Vol. 4, 43-45). That last form is analyzable as /sin-pulu=t osa/, where /=t/ ‘and’, /osa/ < *əsa ‘one’. Similarly, ‘twelve’ is simpu:lut duwa /sin-pulu=t duwa/, where /duwa/ < *duSa ‘two’ and /=t/ ‘and’. Kapampangan, the only Central Luzon language with a reflex of *et, does not use it in compound numerals. Although Tagalog may have borrowed the conjunction from Kapampangan, it does use a reduced form of at in compound numerals above ‘20’, in a very similar way to Kalinga and Isinay:


twenty’ < *daduha ‘two’ + nasal linker + *puluq ‘ten’

dalawampút isá

twenty-one’ < *daduhatwo’ + nasal linker + *puluq ‘ten’ + =(a)t ‘and’ + *esa ‘one’

dalawampút dalawá

twenty-two’ < *daduhatwo’ + nasal linker + *puluq ‘ten’ + =(a)t ‘and’ + *daduha ‘two’

The puluq-t-numeral form cannot easily have been borrowed from Cordilleran into Tagalog, as the languages are not in contact: if Tagalog borrowed the conjunction from Kapampangan, Tagalog shows a development parallel to Cordilleran in its use of the conjunction.

There are two possible accounts of the development of the conjunction itself in the Philippine languages. In the first, the conjunction’s oldest form in the Philippines was *et [ət], regularly evolving to at in Kapampangan, and loaned to Tagalog as at. Under that account, the conjunction, inherited only in the South-Central Cordilleran and Central Luzon groups, reconstructs to the northern clade of Philippine languages in the phylogeny of Gray, Drummond and Greenhill (2009), which this post follows for Malayo-Polynesian. Use of the conjunction between *puluq and a following numeral in Cordilleran and in Tagalog must be the result of parallel innovations.

In a second account, the conjunction’s oldest form in the Philippines was *at. Kapampangan and Tagalog inherited it in that shape, while in the Cordilleran languages the presumably unstressed vowel underwent centralization, to [ət]. Under that account, Tagalog being part of the southern clade, both *at ‘and then’ and the *puluq=at+numeral construction reconstruct higher, to the ancestor of the southern and northern Philippine clades, that is node 28, Proto-Philippines, in Gray, Drummond and Greenhill (2009).

Whether as *et or *at, the Philippine conjunction is reminiscent of the form ato ‘and, with’ in Amis (central Amis: Fey 1986, Namoh 2013) and of the conjunction katu in Paiwan. In Nataoran Amis (Nataoran Amis: Bril fieldwork), atu may occur in numeral expressions (Isabelle Bril, p.c., 11 February 2014):

a cacay-en atu la-tusa ku ni-pabeli itakuan-an tu pawli

HORT one-UV and half NOM PERF.NMZ-give me-OBL ACC banana

Give me one and a half banana (lit. ‘let it be one and a half the giving a banana to me’)

Both Namoh (2013:136) and Bril treat ato~atu as originally composed of a ‘and’ plus =to ‘oblique common noun marker’, drawing a parallel to aci ‘and + personal noun’ (<a ‘and’ + =ci ‘personal noun marker’). The oblique common noun marker to itself is analyzable into t- oblique and u or o common noun marker.

In a northern Amis numeral system recorded by Tsuchida (here), tu, a shortened form of atu, serves in numerals between 11 and 19 as a linker between the locally innovated word for ‘ten’: sabaw , and the following unit number, e.g. sabaw tu tulu ‘13’, sabaw tu lima ‘15’.

Similarly, in a Paiwan dialect recorded by Chang Hsiou-chuan (here), a conjunction katu occurs between *sa-puluq and a following unit number, e.g. tapuluʔ katu ʔunəm ‘16’. katu is analyzeable as katu ‘and-oblique noun marker’, or possibly kaatu ‘andoblique noun marker’.

While *sa-puluq, the Puluqish word for ‘10’ ends in *-q, which corresponds to -k in Kra-Dai, the Kra-Dai word for ‘10’ ends in *-t, as if it came from *pulut: Proto-Kra (Ostapirat 2000) *pwlot ’10’; Proto-Hlai (Norquest 2015) *fu:t ’10’. The languages of the Kam-Tai branch have replaced the inherited form with a Chinese loanword.

The Philippine developments suggest an explanation. The following scenario is based on the hypothesis that the oldest Philippine form of the conjuction was *at. It is also possible to explain the facts under the view that it was *et, but the explanation is slightly more complex.

Comparison of Amis and Paiwan leads one to posit a conjunction *atu ‘and’ between *sa-puluq ‘10’ and a following numeral. In PSA the presumably enclitic conjunction was reduced to *at through syncope. Proto-Malayo-Polynesian and Proto-Kra-Dai, the direct daughters of PSA, inherited both *at and the compound numeral construction with it. Proto-Malayo-Polynesian in turn transmitted these to its immediate daughter Proto-Philippines, but the conjunction and construction were lost in Malayo-Polynesian outside of the Philippines. For this to occur, a single loss is required as such a node is supported with 98% posterior probability in Gray, Drummond and Greenhill (2009). Soon after Kra-Dai branched off, and independently from developments in the Philippines, *at ‘and’ was further reduced to /t/, and the resulting *sa-puluqt was reduced to *sa-pulut in PKD. This then evolved to Proto-Hlai *apu:c, Proto-Kra *pwlot. The outcome in Proto-Kam-Tai is unknown because these KD languages have abandoned Austronesian numerals for Chinese ones.


Gray, R.D., A.J. Drummond and S. Greenhill (2009) Language Phylogenies Reveal Expansion Pulses and Pauses in Pacific Settlement. Nature, 323, 479-483.

Norquest, Peter. 2015. A Phonological Reconstruction of Proto-Hlai. Brill.

Ostapirat, Weera. 2000. Proto-Kra. Linguistics of the Tibeto-Burman Area 23.1:1-251.

Cite this post as: Laurent Sagart, "Southern Austronesian *sa-puluq-at in numbers 10 to 19," in Sino-Tibetan-Austronesian, 07/05/2020,

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