warmness
Warmness (noun) means the quality of being warm, either in temperature or in feeling.
Etymology
From Middle English warmnesse, from Old English wearmnes ("warmness, warmth"), from Proto-West Germanic *warmnassī ("warmness, warmth"); equivalent to warm plus -ness. Cognate with Scots warmnes ("warmness"), West Frisian waarmens ("warmness"), dialectal Dutch warmenesse, warmnis ("warmness") and German Low German Warmnis ("warmness").