when intr, often followed by to: to make or become excited, enthusiastic, etc (about): he warmed to the idea of buying a new car suggestive of warmth, as by being friendly, affectionate, sympathetic, or hearty: a warm heart; warm friends. Heat deaths are already climbing. — Lucas Thompson, NBC News, 14 Nov. 2023 The more the planet warms, the greater the impacts

The dispute is due to differing opinions on how initial Proto-Indo-European *gʷʰ- evolved in Germanic: some think that *gʷʰ would have turned to *b, and that the root *gʷʰer- would instead have given rise to burn etc. Some have also proposed a merger of the two roots. to (cause to) become excited, enthusiastic, cheerful, vital, etc.: [~ +object ] a little wine to warm the company.[ no obj; Show Businessto prepare for a game, sports contest, dance, etc., by moderate exercise or practice beforehand. From Middle Dutch warm, from Old Dutch warm, from Proto-West Germanic *warm, from Proto-Germanic *warmaz, of uncertain origin; derivations from either Proto-Indo-European *gʷʰer- ( “ warm, hot ” ) or *wer- ( “ to burn ” ) have been proposed. to become friendlier or more receptive: No matter how hard I tried, I just couldn't warm up to that proposal.

to (cause to) become warm: [~ +object ( +up) ] warmed himself (up) by the fire. [no object* ~ +up ] I just couldn't warm up. Maori: mahana (mi), pūmahana, pūwerawera, pūwera, pūāhuru ( of the weather ), āhuru ( in the sense of cost and friendly ) Verwijs, E.; Verdam, J. (1885–1929), “ warm”, in Middelnederlandsch Woordenboek, The Hague: Martinus Nijhoff, →ISBN Japanese: ( weather ) 暖かい (ja) ( あたたかい, atatakai ), ( objects , feelings ) 温かい (ja) ( あたたかい, atatakai ), ホカホカ ( Hokahoka ) Sport warm the bench, to serve as a substitute who rarely plays in a game: The young outfielder warmed the bench for the Yankees last season.

to heat or cook (something) for reuse, as leftovers (usually fol. by over or up): to warm up yesterday's stew.

Derived forms of warm

to heat or cook (something) so it can be used again, as leftovers: [~ +up +object ] Warm up the stew. [~ +object +up ] Warm the stew up. Proto-Indo-European *gʷʰer- ( “ warm, hot ” ), related to Ancient Greek θερμός ( thermós ), Latin formus, Sanskrit घर्म ( gharma ). to fill (a person, crowd, etc.) with strong feelings, as hatred, anger, or zeal: Restrictions had warmed the crew to the point of mutiny. Sport warm down, to conclude or follow a period of strenuous physical exercise by walking or gentle stretching. to excite enthusiasm, ardor, cheerfulness, or vitality in (someone): The wine soon warmed the company.