Where does “mo.” come from?

mo. (English) comes from English month, from Middle English moneth, from Old English mōnaþ, from Proto-Germanic mēnōþs, from Proto-Indo-European mḗh₁n̥s, from Proto-Indo-European meh₁- — to measure.

Ancestry of “mo.”, step by step

StepLanguageWordMeaning
1EnglishmonthA period into which a year is divided,...
2Middle Englishmonethmonth
3Old Englishmōnaþmonth
4Proto-Germanicmēnōþsmonth
5Proto-Indo-Europeanmḗh₁n̥smoon; month
6Proto-Indo-Europeanmeh₁-to measure
Every word from Proto-Indo-European meh₁- →