Where does “underheat” come from?

underheat (English) comes from English heat, from Middle English heten, from Old English hǣtan, from Proto-West Germanic haitijan, from Proto-Germanic haitijaną, from Proto-Germanic -janą, from Proto-Indo-European -yéti, from Proto-Indo-European yé- — he, she.

underheat (English): To heat insufficiently

Definitions

  1. To heat insufficiently

Ancestry of “underheat”, step by step

underheat traces back through two separate lines of ancestry.

via English heat

StepLanguageWordMeaning
1EnglishheatThermal energy; The condition or quality of being...
2Middle EnglishhetenAlternative form of hetien
3Old Englishhǣtanto heat; become hot
4Proto-West Germanichaitijanto make hot, heat
5Proto-Germanichaitijanąto make hot, heat
6Proto-Germanic-janąDerives denominatives from nouns and factitives...
7Proto-Indo-European-yétiCreates intransitive, often deponent,...
8Proto-Indo-Europeanyé-
9Chichewaiyehe, she

via English under

StepLanguageWordMeaning
1EnglishunderIn or at a lower level than; As a subject of;...
2Middle Englishunderunder
3Old Englishunderunder, beneath
4Proto-Germanicunderamong, between; under, beneath; under
5Proto-Indo-Europeanh₁entérbetween
6Proto-Indo-Europeanh₁enin; in, inside
Every word from Chichewa iyeEvery word from Proto-Germanic -janąEvery word from Proto-Indo-European -yéti