'glider' originates from the English word 'glide,' which comes from the Old English 'glīdan,' meaning 'to slip or slide.'

'glīdan' transformed into the Middle English word 'gliden,' and eventually became the modern English word 'glide,' from which 'glider' is derived.

Initially, it meant 'to slip or slide,' but over time it evolved into its current meaning of 'a light aircraft that flies without an engine.'