Where does “eighteenmo” come from?

eighteenmo (English) comes from English eighteen, from Middle English eightetene, from Old English eahtatīene, from Proto-Germanic ahtōutehun, from Proto-Germanic ahtōu, from Proto-Indo-European oḱtṓw, from Proto-Indo-European aḱ- — sharp, pointed; sharp, pointed, edgy; sharp,...

eighteenmo (English): octodecimo

Definitions

  1. octodecimo

Ancestry of “eighteenmo”, step by step

StepLanguageWordMeaning
1EnglisheighteenThe cardinal number occurring after seventeen and...
2Middle Englisheighteteneeighteen
3Old Englisheahtatīeneeighteen
4Proto-Germanicahtōutehuneighteen
5Proto-Germanicahtōueight
6Proto-Indo-Europeanoḱtṓweight
7Proto-Indo-Europeanaḱ-sharp, pointed; sharp, pointed, edgy; sharp,...
Every word from Proto-Indo-European aḱ- →Every word from Proto-Indo-European oḱtṓw →Every word from Proto-Germanic ahtōu →