By surface analysis, кѫпати (kǫpati, “to bathe”) + -ло (-lo). Belarusian купа́ўло (kupáŭlo, “bathing place”) suggests it's inherited from Proto-Slavic *kǫpadlo, but the original meaning is unattested.
Sense 2 is a semantic loan from Ancient Greek βαπτιστής (baptistḗs, “baptist”) from βαπτίζω (baptízō, “to wash, clean with water; to baptize”).
кѫпало (kǫpalo) n
singular | dual | plural | |
---|---|---|---|
nominative | кѫпало kǫpalo |
кѫпалѣ kǫpalě |
кѫпала kǫpala |
genitive | кѫпала kǫpala |
кѫпалу kǫpalu |
кѫпалъ kǫpalŭ |
dative | кѫпалу kǫpalu |
кѫпалома kǫpaloma |
кѫпаломъ kǫpalomŭ |
accusative | кѫпало kǫpalo |
кѫпалѣ kǫpalě |
кѫпала kǫpala |
instrumental | кѫпалъмь kǫpalŭmĭ |
кѫпалома kǫpaloma |
кѫпалꙑ kǫpaly |
locative | кѫпалѣ kǫpalě |
кѫпалу kǫpalu |
кѫпалѣхъ kǫpalěxŭ |
vocative | кѫпало kǫpalo |
кѫпалѣ kǫpalě |
кѫпала kǫpala |