gimble · verb1
Compared by the EDD to dialectal Swedish gimla (“to move the lips in an unseemly manner, to make a wry face, to move the lips awry”). Compare also North Frisian gēmeli (“to move the lips before laughing”). Nall compares Old English ginian; the hard g in this form needs explanation (its standard English descendant is yawn), though the EDD does record a variant form jimble (/ˈjɪmbəl/).
gimble · noun, verb2
Variant of gimbal.
Etymology from Wiktionary, CC BY-SA 4.0.