←
Proto-Indo-European *h₂epó (mention)←
Proto-Indo-European *h₃ekʷ- (mention)←
Proto-Indo-European *h₁wer- (mention)←
Proto-Indo-European *h₃ekʷ- (mention)←
Lithuanian akìs (mention)←
Old Norse ǫfugr (cognate)←
Sanskrit अपाक (mention)←
Sanskrit अपाका (cognate)←
Sanskrit उलूक (cognate)←
Proto-Slavic *opakъ (cognate)