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"U" Word Origins

Where do words come from? Trace the origin and history of any English word, from its Latin, Greek or Old English roots through to its modern meaning. Every etymology is sourced.

“U” Word Origins

undignified
Origin
From un- plus dignified.
undine
Origin
From German Undine, from New Latin undīna, from Latin unda (“wave”).
undisciplined
Origin
From un- plus disciplined.
undisclosed
Origin
From un- ("not") plus disclosed, the past participle of disclose.
undiscovered
Origin
From un- ("not") plus discovered, the past participle of discover.
undisputed
Origin
From un- ("not") plus disputed, the past participle of dispute.
undissembled
Origin
From un- (prefix meaning ‘not’) + dissembled (“concealed, disguised; dissimulated, feigned”, adjective).
undisturbed
Origin
From un- ("not") plus disturbed, the past participle of disturb.
undivided
Origin
From un- ("not") plus divided, the past participle of divide.
undo
Old English
From Old English ondōn, from a Germanic root meaning "to do the opposite of" — un- plus do.
undocumented
Origin
From un- ("not") plus documented, the past participle of document.
undoing
Middle English
From Middle English undoinge, formed from undo plus the suffix -ing.
undone
Origin
Past participle form of undo, from un- plus do.
undoomed
Origin
From un- + doomed.
undoubtedly
Middle English
From Middle English undoutedly, built from undoubted plus -ly.
undress
Old English
From Middle English undressen, from un- plus dress; related to Old English unsċrȳdan, literally "to un-shroud."
undressed
Origin
From un- plus dressed, the past participle of dress.
undressing
Origin
From undress plus the suffix -ing.
undrunken
Origin
From un- + drunken.
undue
Origin
From un- ("not") plus due.
undulate
Origin
First attested in 1664; borrowed from New Latin undulātus, the perfect passive participle of undulō (see -ate (verb-forming suffix)), from an unattested *undula (“small wave”), diminutive of Latin unda (“wave”).
undulation
Origin
From undulate + -ion, or borrowed from Medieval Latin undulātiō; compare French ondulation.
unduly
Origin
From undue plus -ly.
undying
Origin
From un- ("not") plus dying, from die.
unearth
Middle English
From Middle English unherthen, formed from un- plus earth.
unearthed
Origin
From un- ("not") plus earthed, the past participle of earth (in the electrical sense).
unearthly
Origin
From un- ("not") plus earthly.
unease
Middle English
From Middle English unese, from un- ("not") plus ease; related to disease.
uneasiness
Origin
From uneasy plus the suffix -ness.
uneasy
Middle English
From Middle English unesy, from un- plus easy; it later merged with the older word uneath, meaning "difficult."
uneatable
Origin
From un- + eatable.
uneath
Origin
From Middle English unethe, uneathe (“difficult, not easy”), from Old English unēaþe (“difficult, not easy”). By surface analysis, un- + eath. See eath, easy for further. First attested in the Old English period.
uneducated
Origin
From un- ("not") plus educated, the past participle of educate.
unemployed
Origin
From un- ("not") plus employed, the past participle of employ.
unemployment
Origin
From un- ("not") plus employment.
unenchant
Origin
From un- + enchant.
unencumbered
Origin
From un- + encumbered.
unending
Origin
From un- ("not") plus ending.
unendly
Origin
From Middle English *unendly, equivalent to un- + endly. Cognate with German unendlich.
unenlightened
Origin
From un- + enlightened.
unenticing
Origin
From un- + enticing.
unequal
Middle English
From Middle English unequale, from un- ("not") plus equal.
unequivocal
Latin
From un- ("not") plus equivocal, from Latin aequivocus ("having the same sound but different meaning").
unequivocally
Origin
From unequivocal plus -ly.
unescapable
Origin
From un- + escapable.
unethical
Origin
From un- ("not") plus ethical.
uneven
Old English
From Old English unefen, meaning "unequal" or "irregular," from un- plus even.
unevenness
Origin
From Middle English unevennesse, equivalent to uneven + -ness.