- -ier [ē′ər, yər; ir, ər][< various sources: 1. ME < OFr < L -arius; 2. Fr < OFr as in 1, with the primary stress in Eng on the suffix; 3. ME var. of -ER; 4. ME < -I- ending of IEPER stem + -er] suffix forming nounsa person concerned with (a specified action or thing) [furrier, bombardier, glazier]
English World dictionary. V. Neufeldt. 2014.