Where does “fathome” come from?

fathome (Middle English) comes from Old English fæþm, from Proto-Germanic *faþm, from Proto-Germanic faþmaz, from Proto-Indo-European pat- — to feed; path; to go.

Ancestry of “fathome”, step by step

StepLanguageWordMeaning
1Old Englishfæþmthe outstretched arms; embrace, bosom;...
2Proto-Germanic*faþm—
3Proto-Germanicfaþmazoutstretched arms; embrace; fathom
4Proto-Indo-Europeanpat-to feed; path; to go

Words derived from “fathome”

Every word from Proto-Indo-European pat- →Every word from Proto-Germanic faþmaz →Every word from Proto-Germanic *faþm →