[-eer] n suffix [MF -ier, fr. L -arius--more at -ary]: one that is concerned with professionally, conducts, or produces "auctioneer" "pamphleteer"--often in words with derogatory meaning "profiteer"
-EER
Meaning of -EER in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012