Why this word is great
WATCHFIRE — [Noun] A fire kept burning through the night by those on vigil, casting a defensive circle of light and warmth against the encircling dark. From watch (meaning "to keep guard") + fire (meaning "combustion for light or heat"). Unlike a "beacon," which broadcasts a declarative signal to a distant horizon, or a "campfire," a communal hearth for sustenance and fellowship, the watchfire is a private, practical covenant for solitary duty. It is the low, resinous snap of pine knots in a forest outpost, the orange pulse on a stone rampart illuminating a sentry’s cupped hands, the steady hiss of sea-coals in a shore-side hut. It is a small, breathing defiance against the vast, indifferent entropy of the night—a flame whose primary purpose is to make the slow, solitary bargain of vigilance bearable.