The most common way of measuring wind force is with the Beaufort scale[3] which defines a gale as wind from 50 kilometres per hour (14 m/s) to 102 kilometres per hour (28 m/s). It is an empirical measure for describing wind speed based mainly on observed sea conditions. On the original 1810 Beaufort wind force scale, there were four different "gale" designations whereas generally today there are two gale forces, 8 and 9, and a near gale 7:
gale
The word gale is derived from the Middle English gale, a general word for wind of any strength, even a breeze. This word is probably of North Germanic origin, related to Icelandic gola (breeze) and Danish gal (furious, mad),[4] which are both from Old Norse gala (to sing), from Proto-Germanic *galaną (to roop, sing, charm), from Proto-Indo-European *gʰel- (to shout, scream, charm away). One online etymology website suggests that the word gale is derived from an earlier spelling, gail, which it claims is of uncertain origin.[5]
gale (third-person singular simple present gales, present participle galing, simple past galed or gole, past participle galed or galen)
gale (present tense gjel, past tense gol, supine gale, past participle galen, present participle galande, imperative gal)
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