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-tor

  1. a suffix found in loanwords from Latin, forming personal agent nouns from verbs and, less commonly, from nouns: dictator; genitor; janitor; orator; victor.
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Origin of -tor

< Latin -tor (stem -tōr-), cognate with Greek -tōr (stem -tor-), Sanskrit -tar-
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018