Definition from Wiktionary, the free dictionary
From after (adverb & preposition), and also continuing Middle English after-, efter-, æfter-, from Old English æfter- (“after, behind, against”). Cognate with Scots efter-, West Frisian efter-, Dutch achter-, Swedish efter-. More at after.
- (rare or no longer productive) With contrary, subordinate, or remote effect; denoting hindrance, set-back, inferiority, etc.
- With adverbial or adjectival effect, forming compound words indicating something that comes afterwards in spacial position or time.
- With prepositional effect, forming compound words denoting something which follows the second element of the compound.