Reconstruction:Proto-Athabaskan/də-
Proto-Athabaskan
Etymology
From Proto-Na-Dene *də- (signaling valency decrease).
Prefix
*də-
- the *də- classifier or valence-change prefix, a detransitivizing prefix of active verbs that modifies the transitivity or valence and grammatical voice of a verb, occurs in most passive, mediopassive, reflexive, and reciprocal verbs that are derived from verbs with an *ə- classifier; it produces the agentive passive verb forms