Proto-IE: *gʷabh-
Meaning: to sink, to plunge
Tokharian: A kupār `tief ?'
Old Indian: gabhīrá-, gambhīrá- `deep', gambhan-, gambhára- n. `depth'
Old Greek: báptō `tauche ein', aor. bápsai̯, pass. att. baphē̂nai̯; baphǟ́ f. `das Eintauchen, Färben', bámma `Farbe, Brühe', bápsi-s `Stählung, Färben', báptǟ-s m. `Eintaucher, Bader'
Russ. meaning: погружать(ся)
References: WP I 674