Words related to flesh

flush (v.1)
mid-13c., flusshen "move rapidly or violently; rush, dart, spring" (intransitive); late 15c., flush up, transitive, "cause to fly; start or flush (birds)," perhaps imitative of the sound of beating wings.

The sense of "spurt, rush out suddenly, flow with force" (1540s, usually of water) probably is the same word, with the connecting notion being "sudden movement," but its senses seem more to fit the older ones of flash (v.), now all transferred to this word except in flash flood, via its variant flushe. OED considers this probably not connected to Old French flux. Transitive sense "cause to flow" is from 1590s.

Meaning "cleanse (a drain, etc.) with a rush of water" is from 1789. Of the face, "become suffused with warm color," from 1680s (flushed). Sense of "inflame with pride or passion" as a result of success, victory, etc., is from 1630s; perhaps influenced in sense by flesh (v.). Related: Flushed; flushing.
fleshless (adj.)
1580s, from flesh (n.) + -less.
fleshly (adj.)
Old English flæsclic "corporeal, carnal;" see flesh (n.) + -ly (1).
fleshpot (n.)

from flesh (n.) + pot (n.1); literally "pot in which flesh is boiled," hence "luxuries regarded with envy," especially in fleshpots of Egypt, from Exodus xvi:3:

Whan we sat by ye Flesh pottes, and had bred ynough to eate. [Coverdale translation, 1535]
fleshy (adj.)
late 14c., "consisting of muscle and flesh," also "plump," from flesh (n.) + -y (2). Related: Fleshiness.
flitch (n.)
"side of bacon," Middle English flicche (c. 1200), "side of a slaughtered animal," especially the salted and cured side of a hog, from Old English flicce "flitch of bacon, ham," from Proto-Germanic *flekkja (source also of Old Norse flikki, Middle Low German vlicke "piece of flesh"). Not immediately from flesh (n.), but perhaps from the same PIE root, *pleik- "to tear" (see flay). The Flitch of Dunmow was presented every year at Little Dunmow, in Essex, to any married couple who could prove they had lived together without quarreling for a year and a day, a custom mentioned in early references as dating to mid-13c., revived 19c.