'abider' originates from Old English, specifically the word 'ābīdan,' where 'ā-' meant 'on' and 'bīdan' meant 'to wait or remain.'

'ābīdan' transformed into the Middle English word 'abiden,' and eventually became the modern English word 'abide,' from which 'abider' is derived.

Initially, it meant 'to wait or remain,' but over time it evolved into its current meaning of 'a person who remains or stays.'