English
telextender
From tele- + extender.
Proto-Indo-European *kʷel- ‘to turn, revolve’
Ancient Greek τῆλε ‘at a distance, far off, far away, far from’
English tele-
Today it means
noun An optical amplifier, used especially in amateur astronomy to magnify an image.
Language periods are conventional ranges, not dates for this word.
Etymograph / telextender