KA, GE 
shita, sa(garu), sa(geru), ku(daru) 
(名) down (形) downward (動) to descend, to lower
gesha (動) to get off (a train, bus, etc.)
kudari esukare-ta- (名) the descending escalator

Links: KanjiDic: EDict : Wikimedia
Etymologies: 中文字譜 : 説文解字