English

malnourish

From mal- + nourish.

Proto-Italic *malos

Archaic Latin malos

Latin malus ‘bad’

Latin male ‘badly’

English mal-

Proto-Indo-European *(s)neh₂- ‘to swim’

…

Proto-Italic *snoutrjō

Latin nutriō ‘to suckle, feed, foster, nourish, cherish,…’

Old French nouriss-

Middle English norischen ‘to consume food or nourishment’

Today it means

verb To feed insufficiently, to cause malnutrition.

Language periods are conventional ranges, not dates for this word.

Etymograph / malnourish