Compressor

wiktionary

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compress +‎  -or, or from New Latin compressor

etymonline

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compressor (n.)

"one who or that which compresses," 1785, in reference to a type of medical instrument, from Latin compressor, agent noun from past-participle stem of comprimere "to squeeze" (see compress (v.)). As a type of surgical instrument, from 1870. As short for air compressor, from 1874.