COMMENT: One of several common NC deictic stems. The original meaning of *dV seems to be "that" with neutral space status (on the same level as the speaker). Cf. also Khin. t:ʷa (with emphatic tenseness) 'there (on the same level as the speaker)'.
Because of the clearcut opposition in PL (*dV - *tV) we must distinguish this root from PEC *tV q.v.
See Trubetzkoy 1930, 274 (comparing also Av. =aṭá 'other, separate' - which hardly belongs here); Abdokov 1983, 138.
