覆 is built from the 覀 (cover / west (top)), 彳 (step / going), and 复 (return (top of 復)) components.
It belongs to a phonetic family with 復, 複, and 腹 — they share the 复 component and the reading フク.
A common word using 覆 is 覆う (おおう), meaning “to cover, to hide, to conceal”.
Don't confuse it with 復, 複, and 腹 — 彳 return, 衤 duplicate, 月 belly, 覀 cover