drift apart vs disaffect

drift apart and disaffect both are verbs.

Word	Noun	Adjective	Verb	Adverb
drift apart	No	No	Yes	No
disaffect	No	No	Yes	No

As verbs, disaffect is a hypernym of drift apart; that is, disaffect is a word with a broader meaning than drift apart:

drift apart: lose personal contact over time
disaffect: arouse hostility or indifference in where there had formerly been love, affection, or friendliness

Other hypernyms of drift apart include alienate, estrange.

drift apart (verb)	disaffect (verb)
lose personal contact over time	arouse hostility or indifference in where there had formerly been love, affection, or friendliness