Etymology
1. From Middle English fathome, fadom, fadme (“unit of length of about six feet; depth of six feet for nautical soundings; (loosely) cubit; ell”) [and other forms], from Old English fæþm, fæþme (“encircling or outstretched arms, bosom, embrace; envelopment; control, grasp, power; fathom (unit of measurement); cubit”) [and other forms], from Proto-West Germanic *faþm (“outstretched arms, embrace; fathom (unit of measurement)”), from Proto-Germanic *faþmaz (“outstretched arms, embrace; fathom (unit of measurement)”), from Proto-Indo-European *pet-, *peth₂- (“to spread out; to fly”).
2. Cognates
3. * Ancient Greek πέταλος (pétalos, “broad; flat”), πετᾰ́ννῡμῐ (petắnnūmĭ, “to open; to spread out; to be dispersed or scattered”) (whence English petal)
4. * Gothic 𐍆𐌰𐌸𐌰 (faþa, “fench; hedge”)
5. * Latin pateō (“to extend, increase; to be accessible, attainable, open; to be exposed, vulnerable”)
6. * Low German fadem, faem (“cubit; thread”)
7. * Middle Dutch vadem (modern Dutch vaam, vadem (“fathom”))
8. * Norwegian Bokmål favn (“an embrace; a fathom”)
9. * Old Frisian fethm (“outstretched arms”)
10. * Old High German fadam, fadum (“cubit”) (Middle High German vade (“enclosure”), vadem, vaden, modern German Faden (“fathom; filament, thread”))
11. * Old Norse faþmr (Danish favn (“an embrace; a fathom”), Icelandic faðmur (“an embrace”), Swedish famn (“the arms, bosom; an embrace”))
12. * Old Welsh etem (“thread”) See: Middle English Nouns '
fathome', Old English Nouns '
fæþm', Gothic Nouns '
𐍆𐌰𐌸𐌰', Latin Nouns '
pateō', Norwegian Bokmål Nouns '
favn', German Nouns '
Faden', Old Norse Nouns '
faþmr', Danish Nouns '
favn', Icelandic Nouns '
faðmur', Swedish Nouns '
famn'.
Verbs referencing "fathom"
English Nouns
petal, Latin Nouns
passus, Norwegian Nynorsk Nouns
famn.