nurse
n.
1
12c., nurrice "wet-nurse, foster-mother to a young child" (modern form from late 14c.), from Old French norrice "foster-mother, wet-nurse, nanny" (source of proper name Norris), from Late Latin *nutricia "nurse, governess, tutoress," noun use of fem. of Latin nutricius "that suckles, nourishes," from nutrix (genitive nutricis) "wet-nurse," from nutrire "to suckle" (see nourish). Meaning "person who takes care of sick" in English first recorded 1580s.
2
"dogfish, shark," late 15c., of unknown origin.
v.
1530s, "to suckle (an infant);" 1520s in the passive sense, "to bring up" (a child); alteration of Middle English nurshen (13c.; see nourish), Sense of "take care of (a sick person)" is first recorded 1736. Related: Nursed; nursing.