Proto-IE: *(e)reip-
Meaning: to crumble, to tear
Old Greek: eréi̯pō, aor. intr. eripêi̯n, tr. erêi̯psai̯, p. ereiphthẹ̄̂s, ēríphthēn, pf. erḗripe, p. erḗrimmai̯ `niederwerfen, niederreissen, niederstürzen, fallen'
Russ. meaning: рушить, рвать
References: WP II 345 f