noun combining form Etymology: Middle English, from Old English -estre female agent; akin to Middle Dutch ~ one that does or handles or operates , one that makes or uses , one that is associated with or participates in , one that is
-STER
Meaning of -STER in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012