tranquillity/tɹæŋˈkwɪl.ɪ.ti/EtymologyFrom tranquil + -ity, from Middle English tranquillite, from Old French tranquillite, tranquilité, from Latin tranquillitas.tranquillity means A census-designated place in Fresno County, California, United States. Lexicurio rates it Rare gem — a strength score of 71 out of 100.nameA census-designated place in Fresno County, California, United States.nounThe state of being tranquil; peacefulness, the absence of disturbance or stress; serenity; calm.“Until the main road from Hatfield to Hertford was diverted a few years ago, heavy lorries trundling through the village sometimes knocked chunks off corner buildings, but now the village has regained much of its former tranquillity.”