word-forming element of Latin origin meaning "bad, badly, ill, poorly, wrong, wrongly," from French mal (adv.), from Old French mal (adj., adv.) "evil, ill, wrong, wrongly" (9c.), from Latin male (adv.) "badly," or malus (adj.) "bad, evil" (fem. mala, neuter malum), from Proto-Italic *malo-, from PIE *mol-o-, probably from PIE root *mel- (3) "false, bad, wrong."
Most Modern English words with this element are 19c. coinages. It generally implies imperfection or deficiency, but often it is simply negative (as in malfeasance, malcontent). It is equivalent to dys- and caco- of Greek origin and Germanic mis- (1).
nourishment n.
early 15c., norishement, "food, sustenance, that which, taken into the system, tends to nourish," from Old French norissement "food, nourishment," from norrir (see nourish). From c. 1300 as "fostering, upbringing; act of nourishing or state of being nourished." Figurative sense of "that which promotes growth or development of any kind" is by 1570s.