Where does “haff” come from?

haff (Middle Breton) comes from Old Breton ham, from Proto-Brythonic haβ̃, from Proto-Celtic samos, from Proto-Indo-European sm̥-h₂-ó-, from Proto-Indo-European semh₂- — summer, year.

Ancestry of “haff”, step by step

StepLanguageWordMeaning
1Old Bretonham—
2Proto-Brythonichaβ̃summer
3Proto-Celticsamossummer
4Proto-Indo-Europeansm̥-h₂-ó-—
5Proto-Indo-Europeansemh₂-summer, year

Words derived from “haff”

Every word from Proto-Indo-European semh₂- →Every word from Proto-Indo-European sm̥-h₂-ó- →Every word from Proto-Celtic samos →