Etymology
Advertisement

Words related to expunge

ex- 
word-forming element, in English meaning usually "out of, from," but also "upwards, completely, deprive of, without," and "former;" from Latin ex "out of, from within; from which time, since; according to; in regard to," from PIE *eghs "out" (source also of Gaulish ex-, Old Irish ess-, Old Church Slavonic izu, Russian iz). In some cases also from Greek cognate ex, ek. PIE *eghs had comparative form *eks-tero and superlative *eks-t(e)r-emo-. Often reduced to e- before -b-, -d-, -g-, consonantal -i-, -l-, -m-, -n-, -v- (as in elude, emerge, evaporate, etc.).
Advertisement
*peuk- 
also *peug-, Proto-Indo-European root meaning "to prick."

It forms all or part of: appoint; appointment; bung; compunction; contrapuntal; expugn; expunge; impugn; interpunction; oppugn; pink; poignant; point; pointe; pointillism; poniard; pounce; pugilism; pugilist; pugnacious; pugnacity; punch (n.1) "pointed tool for making holes or embossing;" punch (n.3) "a quick blow with the fist;" punch (v.) "to hit with the fist;" puncheon (n.2) "pointed tool for punching or piercing;" punctilio; punctilious; punctual; punctuate; punctuation; puncture; pungent; punty; Pygmy; repugn; repugnance; repugnant.

It is the hypothetical source of/evidence for its existence is provided by: Greek pyx "with clenched fist," pygme "fist, boxing," pyktes "boxer;" Latin pugnare "to fight," especially with the fists, pungere "to pierce, prick."
expunction (n.)

"act of expunging or erasing, removal by erasure, a blotting out or leaving out," c. 1600, from Latin expunctionem (nominative expunctio), noun of action from past-participle stem of expungere "prick out, blot out, mark for deletion" (see expunge).

inexpungible (adj.)
1610s, from in- (1) "not, opposite of" + expungible (see expunge).