(view clickable tree)
There is some evidence that Thao and Atayalic form a subgroup within Limaish. This subgroup includes Thao and the two Atayalic languages, Atayal and Seediq. First, Thao and Atayalic share the innovation of parallel multiplicative forms for ‘six’ and ‘eight’:
Thao (Blust 2003) makal̥-turu-turu ‘six’ (turu ‘three’); makal̥-ʃpaʃpat ‘eight’ (ʃpat ‘four’). Shorter forms ka-turu and ka-ʃpat are also attested (here).
Atayal (Mayrinax) (here) matuuʔ ‘six’ (tuuʔ ‘three’); maspat ‘eight’ ( səpat ‘four’) (here)
Seediq (here) mataɾu ‘six’ (təɾu ‘three’); maspat ‘eight’ (səpat ‘four’)
A second piece of evidence for Thao-Atayalic is the uniquely shared future prefix ma– in Blust’s ACD:
|Seediq (Truku)||ma-||frequent prefix carrying the idea of an indeterminate future|
|Thao||ma-||prefix marking the future in actor voice verbs|