fathom

See also: faþom

English[edit]

From Middle English fathome, fadome, from Old English fæþm, fæþme (“outstretched or encircling arms, embrace, grasp, protection, interior, bosom, lap, breast, womb, fathom, cubit, power, expanse, surface”), from Proto-Germanic *faþmaz (“embrace”), from Proto-Indo-European *pet- (“to spread out, extend”). Cognate with Low German fadem, faem (“a cubit, thread”), Dutch vadem, vaam (“fathom”), German Faden (“thread, filament, fathom”), Danish favn (“embrace, fathom”), Norwegian Bokmål favn (“embrace, fathom”), Swedish famn (“the arms, bosom, embrace”), Icelandic faðmur (“embrace”), Latin pateō, Ancient Greek πετάννυμι (petánnumi), Ancient Greek πέταλος (pétalos) [whence English petal].

English Wikipedia has an article on:

fathom

Wikipedia

fathom (plural fathoms)

(obsolete) Grasp, envelopment, control.
(units of measure, now usually nautical) An English unit of length for water depth notionally based upon the width of grown man's outstretched arms but standardized as 6 feet (about 1.8 m).
Synonyms: brace, stade (obsolete), orguia (Greek)
- 1983, Richard Ellis, The Book of Sharks, Knopf, →ISBN, page 7:
  At fifty fathoms, the waters of the Southern Ocean are dark blue.
(units of measure) Various similar units in other systems.
- 1611, Bible (KJV), Acts 27:28:
  And sounded, and found it twentie fathoms: and when they had gone a little further, they sounded againe, and found it fifteene fathoms.
(figuratively) Depth of insight, mental reach or scope.
- c. 1603–1604, William Shakespeare, “The Tragedie of Othello, the Moore of Venice”, in Mr. William Shakespeares Comedies, Histories, & Tragedies: Published According to the True Originall Copies (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, OCLC 606515358, [Act 1, scene 1], lines 151-2:
  Another of his fathom they have none
  To lead their business.

unit of length

Maori: whanganga, aronui, mārō
Norman: brache f
Norwegian: favn (no)
Occitan: braça f
Polish: sążeń (pl)
Portuguese: braça (pt) m
Romanian: braț (ro) n, fathom (ro) m
Russian: морская са́жень f (morskaja sáženʹ), фатом (ru) m (fatom), фадом (ru) m (fadom)
Sanskrit: व्याम (sa) f (vyāma)
Serbo-Croatian:
Cyrillic: хват

Roman: hvat (sh)
Slovak: siaha f
Slovene: seženj m
Spanish: braza (es) f
Swedish: famn (sv)
Tagalog: dipa
Telugu: బార (te) (bāra)
Thai: วา (th) (waa)
Tocharian B: keṣe
Turkish: kulaç (tr)
Welsh: gwryd m, gwrhyd m

fathom (third-person singular simple present fathoms, present participle fathoming, simple past and past participle fathomed)

(transitive, archaic) To encircle with outstretched arms, especially to take a measurement; to embrace.
(transitive) To measure the depth of, take a sounding of.
(transitive, figuratively) To get to the bottom of; to manage to comprehend; understand (a problem etc.).
Synonyms: fathom out, figure out, puzzle out, work out

I can't for the life of me fathom what this means.
- 2018 April 10, Daniel Taylor, “Liverpool go through after Mohamed Salah stops Manchester City fightback”, in The Guardian (London)‎^[1]:
  Otamendi’s selection ahead of Vincent Kompany was difficult to fathom and, apart from Fernandinho, City’s line-up was otherwise filled with attacking players.