jounce
/d͡ʒaʊn(t)s/ verb, noun
Forms jounces jouncing jounced
- verb (transitive) To shake (someone or something) up and down, for example, by driving a vehicle over obstructions or riding a horse roughly; to jolt.
- verb (intransitive) To move vigorously up and down; to bounce, to bump, to jolt; also, to fall and hit something heavily.
- noun A vigorous up-and-down movement; a jolt, a shake.
- noun (physics) The fourth derivative of the position vector with respect to time; the time derivative of jerk.
Synonyms
Etymology
The verb is derived from Late Middle English *jouncen (“to jolt violently”) (evidenced by jouncinge (“violent jolting movement”)); further etymology unknown, possibly imitative.
The noun is probably derived from the verb as it is attested later.
Webster’s 1913
- verb To jolt; to shake, especially by rough riding or by driving over obstructions.
- noun A jolt; a shake; a hard trot.
Etymology [Cf. Jaunce.]
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “jounce”, CC BY-SA 4.0. Details