悪足掻き[waruagaki] useless resistance
一挙手一投足[ikkyoshuittousoku] slight effort
一足[issoku] pair (footwear)
一足[hitoashi] step
一足先[hitoashisaki] one step ahead

一足飛び[issokutobi] (at) one bound
逸足[issoku] fast runner
右足[migiashi] right foot
運動不足[undoubusoku] insufficient exercise
栄養不足[eiyoubusoku] malnutrition

ミサイル駆逐艦[misairukuchikukan] (guided) missile destroyer
駆けっこ[kakekko] (foot) race
駆ける[kakeru] to run (race, esp. horse)
駆降りる[kakeoriru] to run down (stairs, etc.)
駆けまわる[kakemawaru] to run around

駆寄る[kakeyoru] to rush over
駆けこみ[kakekomi] last-minute rush
駆込み寺[kakekomidera] (women's) refuge
駆込む[kakekomu] to rush in (at the last minute)
駆上る[kakeagaru] to run up