shrew / shroō/ • n. a small mouselike insectivorous mammal (Sorex, Crocidura, and other genra, family Soricidae) with a long pointed snout and tiny eyes. ∎  a bad-tempered or aggressively assertive woman.DERIVATIVES: shrew·ish adj.shrew·ish·ly adv.shrew·ish·ness n.

shrew the shrew was popularly believed to be dangerous, and especially venomous. The name is recorded in Old English (in form scrēawa, scrǣwa, of Germanic origin); related words in Germanic languages have senses such as ‘dwarf’, ‘devil’, or ‘fox’.

From the Middle English period, shrew, with regard to the animal's reputation, was used to designate a malignant or vexatious person, and from this developed the particular sense of a bad-tempered or aggressively assertive woman.

shrew1 mammal of the genus Sorex, formerly held to be venomous. OE. sċrēawa, sċræwa, rel. to OHG. scrawaz dwarf, MHG. schrawaz devil, Icel. skrǫggr old man, Norw. skrugg dwarf. Comp. shrewmouse XVI.

shrew2 †malignant man XIII; person (now, woman) given to railing XIV. perh. transf. use of prec., but poss. spec. application of a word meaning ‘ill-disposed being’.
Hence shrewish †wicked XIV; ill-natured, given to scolding XVI.

shrew Smallest mammal, found throughout the world. It is an active, voracious insectivore that eats more than its own weight daily. Family Soricidae.