Verbs based on root *plak-
plakati
3sg.prs plačetъ (je-stem), 2/3sg.aor plaka (a-stem)
Leskien class III
ipf aspect
reflexive
arguments: sę, gen, o + loc
prefix variation: vъz-, iz-, o-, po-, pri-, pro-, raz- (pf)
ʹcryʹ, according to LIV (485) originally ʹbeat (oneself to the chest)ʹ, hence often reflexive in OCS
the later meaning ʹwashʹ (SJS, link) has a parallel in pьrati
ne-stem plaknǫti ʹabluereʹ, attested from 16th c. (Mikl.), reflects the later meaning too
Examples in the corpus: oplakati oplakvam plač plača poplača priplakam vъzplakati zaplača
full lexicon