affricative (n.) 1879, perhaps via German, with -ive + Latin affricat-, past participle stem of affricare "rub against," from ad- (see ad-) + fricare "to rub" (see friction).
Source: p 40, Linguistics For Dummies (1 ed, 2012; by Dechaine, Burton, Vatikiotis-Bateson).
Affricates: These make a stop and then a fricative.
Source: p 79, Linguistics: An Introduction to Language and Communication (6 ed, 2010; by Adrian Akmajian, Richard A. Demers, Ann K. Farmer, Robert M. Harnish)
An affricate is a single but complex sound, beginning as a stop but releasing secondarily into a fricative.
Both books above seem to suggest a separation between the stop and fricative. If so, does this separation contradict the etymology of 'affricative', because the prefix ad- seems to imply a connection of fricare TO something? Did anything drift semantically?