sway,
swing alternate dramatically between high and low values; "his mood swings"; "the market is swinging up and down"
hunt pursue for food or sport (as of wild animals); "Goering often hunted wild boars in Poland"; "The dogs are running deer"; "The Duke hunted in these woods"
librate vibrate before coming to a total rest; "the children's swing librated"
vibrate -
be undecided about something; waver between conflicting positions or courses of action; "He oscillates between accepting the new position and retirement"
