A scented lotion or liquid applied to the skin after shaving to soothe, disinfect, and freshen it.
A compound word: 'after' (Old English 'æfter') plus 'shave' (Old English 'sceafan'). The word is a relatively modern invention in English, appearing prominently in the 20th century as shaving became a daily ritual.
Aftershave was actually a practical health product before it became a fragrance—those stinging products with alcohol were genuinely disinfecting the tiny cuts from razor blades. Smelling good was a bonus feature of preventing infection!
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