capsize, cover, shade, mantle, be ruined
覆 centers on turning something over or covering it completely: a capsize flips a vessel, a cover or shade conceals what is underneath, and being ruined is like having one's fortunes overturned.
覆 combines 覀 (a variant of 西, here suggesting covering) with 復 (return, repeat), which likely contributes the sound and the idea of turning over or covering again.
The top 覀 looks like a lid or covering, and the bottom 復 suggests going back and forth. Picture a lid being placed over and over, or a boat rocking back and forth until it capsizes.
For フク, imagine a fuku (服, clothes) covering you completely: fuku -> フク, and the clothes act like a mantle that shades and covers.
to cover; to hide; to conceal; to wrap; to disguise
cover; mantle; shroud; hood
to overturn; to capsize; to upset
mask; veil; disguise
overturning; capsizing
coating; covering
to topple over; to be overturned; to capsize
concealment (of one's vices); veil; cover
cover; covering
turning upside down
to overrule a decision
learn wisdom from the follies of others; learn from others' mistakes; the toppling over of the cart in front serves as a warning for the cart behind
changing one's mind (and betraying someone); turning traitor (to); betraying; double-crossing; having a change of heart
subversion (of the state)
to defy conventional wisdom
sunshade; sunscreen; window shade; blinds
to cover a coffin; to die
to avert one's eyes; to avoid looking straight at something; to cover one's eyes
to cover up the sky (e.g. smoke)
fickle friendship