- The definition of lukewarm is someone or something not very warm or lacking in enthusiasm.
- An example of lukewarm is coffee after it's been sitting out for thirty minutes.
- An example of lukewarm is someone who reluctantly hugs another person.
- barely or moderately warm: said of liquids
- not very warm or enthusiastic: lukewarm praise
Origin of lukewarmMiddle English luke warme ; from luke, tepid (akin to Low German luk, Dutch leuk, tepid ; from Indo-European an unverified form kleu- ; from base an unverified form kel-, warm from source Old English hleowe, tepid, Classical Latin calere, to be warm) + warm, warm
- Mildly warm; tepid.
- Lacking conviction or enthusiasm; indifferent: gave only lukewarm support to the incumbent candidate.
Origin of lukewarmMiddle English leukwarm : leuk, luke (possibly alteration of leu, from Old English hlēow; see kel&schwa;-1 in Indo-European roots) + warm, warm; see warm.
From Middle English lukewarme (“lukewarm, tepid"), equivalent to luke (“lukewarm") +"Ž warm. First element believed to be an alteration of Middle English lew (“tepid") (> English dialectal lew), from Old English hlÄ“ow (“warm, sunny"), from Proto-Germanic *hliwjaz, *hlÄ“waz, *hlÅ«maz, *hleumaz (“warm"), from Proto-Indo-European *á¸±al(w)e-, *á¸±el(w)e-, *k(')lÄ“w- (“warm, hot"). Cognate with Dutch lauw (“tepid"), German lauwarm (“lukewarm"), Faroese lÃ½ggjur (“warm"), Swedish ljum (“lukewarm"), ljummen (“lukewarm") and ly (“warm"), Danish lummer (“muggy"), Danish and Norwegian lunken (“tepid"), Swedish dialectal ljummen (“lukewarm").