revitalization (n.)Related entries & more
"act or fact of being given fresh life and vigor, act of revitalizing," 1869, noun of action from revitalize.
spiritless (adj.)Related entries & more
vim (n.)Related entries & more
1843, usually said to be from Latin vim, accusative of vis "strength, force, power, vigor, energy," from Proto-Italic *wis-, traditionally from PIE root *weie- "to go after, pursue with vigor or desire," with noun derivatives indicating "force, power" (see gain (v.)) and related to the root of virile. But de Vaan seems to have doubts ("more easily explained from an original root noun"), and based on the early uses OED suggests the possibility that the English word is of "a purely inventive or interjectional origin."
reinvigorate (v.)Related entries & more
feckless (adj.)Related entries & more
reanimation (n.)Related entries & more
blaze (v.1)Related entries & more
"to burst into flame, burn brightly or vigorously," c. 1200, from blaze (n.1). To blaze away "fire (guns or cannon) continuously" is by 1776, hence "work with vigor and enthusiasm." Related: Blazed; blazing.
audacity (n.)Related entries & more
early 15c., "boldness, courage, daring; vigor, animation," from Medieval Latin audacitas "boldness," from Latin audacis genitive of audax "bold, daring; rash, foolhardy" (see audacious). In English, the meaning "presumptuous impudence," implying contempt of moral restraint, is from 1530s.
vivacity (n.)Related entries & more
early 15c., "liveliness, vigor," from Old French vivacite or directly from Latin vivacitatem (nominative vivacitas) "vital force, liveliness," from vivax (genitive vivacis) "lively," also "long-lived," from vivere "to live" (see vital).
fade (n.)Related entries & more
early 14c., "loss of freshness or vigor," from fade (adj.), c. 1300, " lacking in brilliance; pale, discolored, dull," from Old French fade (see fade (v.)). As a type of tapering hairstyle from 1988 (fade-out style is in a 1985 "Ebony" article on men's haircuts).