wobble

(noun) an unsteady rocking motion.

(verb) move unsteadily. Synonyms: coggle. Examples: "His knees wobbled." "The old cart wobbled down the street."

(verb) move sideways or in an unsteady way. Synonyms: careen, shift, tilt. Example: "The ship careened out of control."

(verb) tremble or shake. Synonyms: shimmy. Example: "His voice wobbled with restrained emotion."