This is the 5799th most frequent Japanese word.
はき
"はき" can mean "wearing" (as in shoes or pants) or "vigour/spirit," depending on context.
In this sentence, 'はき' is used to indicate wearing clothing below the waist, originating from 'はく' which means 'to wear' (pants, skirts, etc.).
彼女は美しい服を着きました。
She put on beautiful clothes.
Here, 'はき' comes from '掃く,' which means 'to sweep,' referring to cleaning an area with a broom or similar tool.
床を掃きました。
I swept the floor.
In this sentence, '履き' derives from '履く,' used to denote wearing footwear.