IPA: /ˈæftərˌteɪst/
KK: /ˈæftərˌteɪst/
A flavor that stays in your mouth after you have eaten or drunk something, even after the food or drink is gone.
The wine had a pleasant aftertaste that lingered long after the last sip.
Aftertaste → It is formed from "after" (from Old English "æfter", meaning following in time) and "taste" (from Old French "taster", meaning to perceive the flavor of). The word "aftertaste" refers to the flavor that remains after the initial taste has faded.
Think of the flavor that comes 'after' ('after') the initial experience of 'tasting' ('taste').
No commonly confused words.