*bheidh-

Middle English abiden, from Old English abidan, gebidan "remain, wait, wait for, delay, remain behind," from ge- completive prefix (denoting onward motion; see a- (1)) + bidan "bide, remain, wait, dwell" (see bide).

Originally intransitive (with genitive of the object: we abidon his "we waited for him"); the transitive senses of "endure, sustain, stay firm under," also "tolerate, bear, put up with" (now usually with a negative) are from c. 1200. To abide with "stay with (someone); live with; remain in the service of" is from c. 1300. 

Related: Abided; abiding. The historical conjugation was abide, abode, abidden, but in Modern English the formation generally is weak.

mid-13c., "action of waiting," verbal noun from abiden "to abide" (see abide). It is formally identical with the old, strong past participle of abide (Old English abad), but the modern conjugation is weak and abided is used. The present-to-preterite vowel change is consistent with an Old English I strong verb (ride/rode, etc.). The meaning "habitual residence" is attested by 1570s.