Words and Proper Names

a-tá

8763.
Lindeman (Fredrik Otto): On the origin of the present subjunctive of the substantive verb in Old Irish.
In Fs. Watkins (1998), pp. 405–412.
11634.
Broderick (George): Latin and Celtic: the substantive verb.
In Ilteangach, ilseiftiúil [Fs. N. J. A. Williams] (2012), pp. 29–47.
Suggests PCelt. *tā-ije/o- (> OIr. a-tá) developed as the unmarked substantive verb in Insular Celtic due to Latin influence.

Republ. in Glotta 91 (2015), pp. 3-14.