- evolve
- 1640s, "to unfold, open out, expand," from L. evolvere "to unroll," especially of books; figuratively "to make clear, disclose; to produce, develop," from ex- "out" (see ex-) + volvere "to roll" (see vulva). Meaning "to develop by natural processes to a higher state" is from 1832. Related: Evolved; evolving.
- evolution
- 1620s, "an opening of what was rolled up," from L. evolutionem (nom. evolutio) "unrolling (of a book)," noun of action from evolvere (see evolve). Used in various senses in medicine, mathematics, and general use, including "growth to maturity and development of an individual living thing" (1660s). Modern use in biology, of species, first attested 1832 by Scottish geologist Charles Lyell. Charles Darwin used the word only once, in the closing paragraph of "The Origin of Species" (1859), and preferred descent with modification, in part because evolution already had been used in the 18c. homunculus theory of embryological development (first proposed under this name by Bonnet, 1762), in part because it carried a sense of "progress" not found in Darwin's idea. But Victorian belief in progress prevailed (along with brevity), and Herbert Spencer and other biologists popularized evolution.
- slut
- c.1400, "a dirty, slovenly, or untidy woman," probably cognate with dialectal Ger. Schlutt "slovenly woman," dialectal Swed. slata "idle woman, slut," and Du. slodder "slut," but the ultimate origin is doubtful. Chaucer uses sluttish (late 14c.) in reference to the appearance of an untidy man. Also "a kitchen maid, a drudge" (mid-15c.; hard pieces in a bread loaf from imperfect kneading were called slut's pennies, 18c.). Meaning "woman of loose character, bold hussy" is attested from mid-15c.; playful use of the word, without implication of loose morals, is attested from 1660s.
Our little girl Susan is a most admirable slut, and pleases us mightily. [Pepys, diary, Feb. 21, 1664]
Sometimes used 19c. as a euphemism for bitch to describe a female dog. There is a group of North Sea Germanic words in sl- that mean "sloppy," and also "slovenly woman," and that tend to evolve toward "woman of loose morals" (cf. slattern, also English dial. slummock "a dirty, untidy, or slovenly person," 1861; M.Du. slore "a sluttish woman").