gale (n.)youdaoicibaDictYouDict
"strong wind," especially at sea, 1540s, from gaile "wind," origin uncertain. Perhaps from Old Norse gol "breeze," or Old Danish gal "bad, furious" (often used of weather), which are related to Old Norse galinn "furious, mad, frantic; enchanted, bewitched," from gala "to sing, chant," the wind so called from its raging or on the notion of being raised by spells (but OED finds reason to doubt this). Or perhaps it is named for the sound, from Old English galan "to sing," or giellan "to yell." The Old Norse and Old English words all are from the source of yell (v.). In nautical use, between a stiff breeze and a storm; in technical meteorological use, a wind between 32 and 63 miles per hour.
still (adj.)youdaoicibaDictYouDict
Old English stille "motionless, stable, fixed, stationary," from Proto-Germanic *stilli- (cognates: Old Frisian, Middle Low German, Middle Dutch stille, Dutch stil, Old High German stilli, German still), from PIE root *stel- "to put, stand," with derivatives referring to a standing object or place (see stall (n.1)). Meaning "quiet, calm, gentle, silent" emerged in later Old English. Euphemistic for "dead" in stillborn, etc. Still small voice is from KJV:
And he said, Go forth, and stand upon the mount before the LORD. And, behold, the LORD passed by, and a great and strong wind rent the mountains, and brake in pieces the rocks before the LORD; but the LORD was not in the wind: and after the wind an earthquake; but the LORD was not in the earthquake: and after the earthquake a fire; but the LORD was not in the fire: and after the fire a still small voice. [1 Kings 19:11-13]
Used as a conjunction from 1722.