Languor is a pleasant heavy tiredness with no wish to move. Summer languor, a mood of languor, sink into languor.
It is warm rather than unwell, which is what separates it from exhaustion: languor is the feeling of a hot afternoon with nothing that must be done. It is literary, and the adjective languid is the commoner form in ordinary writing.
1nounlanguorA pleasant heavy tiredness with no wish to move.
“After the long massage, she lay in a warm languor and didn't want to get up.”
languor is a tiredness.
Latin languor comes from languere, to be faint or weary. Languish is a relative.
Proto-Indo-European
*(s)leg-
Latin
languor — faintness, feebleness; languor; apathy
Old French
langueur
Anglo-Norman
langor
Middle French
languer
Middle English
langore
English, today
languor
Built from
The noun is derived from Middle English langore, langour (“disease, illness; misery, sadness; suffering; condition or event causing sadness, suffering, etc.; unwholesomeness; idleness, inertia; depression, self-disgust; expression of grief”)langor, langore, langour, langoure, langowr, languour, langre, langur, langure, longour, longoure, languowre (Late Middle English), from Middle French languer, langueur, langour, and Anglo-Norman langor, langour, langur, Old French langueur, languour (“disease, illness; suffering; emotional fatigue, sadness; listlessness; stagnation”) (modern French langueur (“languor”)), and from their etymon Latin languor (“faintness, feebleness; languor; apathy”), from languēre, the present active infinitive of langueō (“to feel faint or weak; (figurative) to be idle, inactive; to be listless”), ultimately from Proto-Indo-European (s)leg-, (s)leh₁g-. The English word is cognate with Catalan llangor, Italian languore (“faintness, weakness; languor”), langore obsolete, Old Occitan langor (modern Occitan langor), Portuguese langor, languor obsolete, Spanish langor.
Etymology from Wiktionary, CC BY-SA