Slovak ujo

← Bulgarian ву́йчо (cognate)

← Proto-Indo-European *h₂ewh₂yos (inherited)

← Latin avus (cognate)

← Russian вуй (cognate)

← Russian уй (mention)

← Serbo-Croatian у̏ја̄к (cognate)

← Serbo-Croatian ȕjāk (mention)

← Slovene ujac (cognate)

← Proto-Slavic *ujь (inherited)

← Ukrainian вуй (cognate)

→ Bulgarian вуйчо (cognate)

→ Russian уй (cognate)

→ Slovak ujec (affix)