wobble

nouns

an unsteady rocking motion
is derived from
is a type of (narrower)
a natural event that involves a change in the position or location of something

verbs

move unsteadily
"His knees wobbled"; "The old cart wobbled down the street"
is derived from
move sideways or in an unsteady way
"The ship careened out of control"
is derived from
tremble or shake
"His voice wobbled with restrained emotion"