Morpheme
Tranquil(l) [Tranquil, Tranquill]
Type
free base
Denotation
quiet, calm, still, placid, composed, untroubled, undisturbed
Etymology
(1) Middle English tranquillite; Old French tranquillite, tranquilite, tranquilité; Latin tranquillitātem, from tranquillitās, from tranquillus + -tās, of unknown origin but probably from an earlier *trānsquīlus, from trāns- + quiēs and/or (2) Old French tranquille; Latin tranquillus, of unknown origin but probably from an earlier *trānsquīlus, from trāns- + quiēs
Evidence
intranquillity, tranquil, tranquiler, tranquilest, tranquilise, tranquilised, tranquiliser, tranquilises, tranquilising, tranquility, tranquilization, tranquilization, tranquilize, tranquilized, tranquilizer, tranquilizes, tranquilizing, tranquillise, tranquillised, tranquilliser, tranquillises, tranquillising, tranquillity, tranquillize, tranquillized, tranquillizer, tranquillizes, tranquillizing, tranquilly, tranquilness, untranquil, untranquility, untranquilize, untranquilized, untranquilizes, untranquilizing, untranquillity, untranquilly
Notes
<l> does not double when Tranquil because the stress falls on the first syllable
tranquillity, tranquilize prefered American spelling
tranquillity, tranquillize, tranquillise prefered British spelling
tranquilise least common variation
