Where does “tranquillity” come from?

Tranquillity derives from Middle French tranquillité, from Latin tranquillitas (state of being calm), combining trans- (across) with quillus (calm), ultimately from Proto-Indo-European terh₂- (to cross or pass through).

tranquillity (English): the state of being tranquil; the absence of...

Definitions

  1. the state of being tranquil; the absence of...

Ancestry of “tranquillity”, step by step

tranquillity traces back through two separate lines of ancestry.

via Middle English tranquillite

StepLanguageWordMeaning
1Middle Englishtranquillitepeaceableness, tranquility
2Old Frenchtranquillite
3Latintranquillitāsquietness, calmness, stillness, tranquillity, serenity
4LatinTranquillusquiet, calm, still, tranquil
5Latintrānsquīlus
6Latinquiēsthe rest of sleep, repose
7Proto-Italickʷiētis
8Proto-Indo-Europeankʷyéh₁tis
9Proto-Indo-Europeankʷyeh₁-to rest; rest, peace

via English tranquil

StepLanguageWordMeaning
1EnglishtranquilFree from emotional or mental disturbance; Calm;...
2Middle Frenchtranquille
3Latintranquillisdative masculine plural of tranquillus; dative...

Words derived from “tranquillity

Every word from Proto-Indo-European kʷyeh₁-Every word from Proto-Indo-European kʷyéh₁tisEvery word from Proto-Italic kʷiētis
tranquillity — Etymology, Origin & Word History | Etymology Explorer