smoke-free
adj
Meaning
- In which smoking is not allowed.
Etymology / origin
Etymology tree English smoke Proto-Indo-European *preyH- Proto-Indo-European *-ós Proto-Indo-European *priHós Proto-Germanic *frijaz Proto-West Germanic *frī Proto-West Germanic *-frī Old English -frēo Middle English -fre English -free English smoke-free From smoke + -free.
Sources
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