tap / space
Classic usage
Reading level: hard
Estimated CEFR level: C1 — Advanced
Estimated from word frequency; not an official CEFR classification.
Borrowed from Latin obsolētus (“worn out, gone out of use”), past participle of obsolēscere (“to wear out, fall into disuse, grow old, decay”); see obsolesce.
disused
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tap / space
Classic usage
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