English
longwave
From long + wave.
Proto-Indo-European *dlongʰos ‘long’
Proto-Germanic *langaz ‘long’
Proto-West Germanic *lang ‘long’
Old English lang ‘long, tall, lasting’
Middle English long
English long
Proto-Indo-European *webʰ- ‘to weave, braid’
Proto-Germanic *wabōną
Proto-West Germanic *wabōn
Old English wafian ‘to wave’
Middle English waven ‘to shake’
English wave
Today it means
adj Having a wavelength of greater than 1000 meters.
Language periods are conventional ranges, not dates for this word.
Etymograph / longwave