adjective/irotaθjoˈnal/
irrotational
Etymology tree Spanish in- Latin rotō Proto-Indo-European *-tis Proto-Indo-European *-Hō Proto-Indo-European *-tiHō Proto-Italic *-tiō Latin -tiō Latin rotātiōnembor. Spanish rotación Proto-Indo-European *h₂el-der.? Proto-Italic *-ālis Latin -ālis Spanish -al Spanish rotacional Spanish irrotacional From in- + rotacional.