12 letters · 12 points in Scrabble
originEtymology tree Proto-Indo-European *né Proto-Indo-European *n̥- Proto-Italic *n̥- Latin in- Latin ir- English ir- English rotation Proto-Indo-European *h₂el-der.? Proto-Italic *-ālis Latin -ālisbor. Old French -albor. ▲ Latin -ālis Old French -elbor. ▲ Latin -ālisbor. Middle English -al English -al English rotational English irrotational From ir- + rotational.
Etymology from Wiktionary, CC BY-SA 3.0