As nouns the difference between rounce and jounce
is that rounce is (printing) the handle by which the bed of a hand press, holding the form of type, etc, is run in under the platen and out again while jounce is (physics) the fourth derivative of the position vector with respect to time; the time derivative of jerk.
As a verb jounce is
to jolt; to shake, especially by rough riding or by driving over obstructions.
rounce
English
Noun
(
en noun)
(printing) The handle by which the bed of a hand press, holding the form of type, etc., is run in under the platen and out again.
(printing) The whole apparatus by which the form is moved under the platen.
(
Webster 1913)
jounce
English
Verb
To jolt; to shake, especially by rough riding or by driving over obstructions.
Derived terms
* jouncy
Noun
(
en noun)
(physics) The fourth derivative of the position vector with respect to time; the time derivative of jerk.