Etimoloji
Etymology tree Proto-Indo-European *meh₁-der.? Proto-Balto-Slavic *met-der. Proto-Slavic *mestì Proto-Slavic *motati Proto-Slavic *-ylъ Proto-Slavic *-jь Proto-Slavic *-yľь Proto-Slavic *motyľь Polish motyl Proto-Indo-European *-isder. Proto-Indo-European *-ósder. Proto-Slavic *-ьjь Old Polish -i Polish -i Polish motyli From motyl + -i.