-yer
Origin
From Middle English, partly an alteration of -ier; and partly from Middle English -yere, -iere, -Èere, the suffix -er appended to words ending in È or g. More at -ier, -er.
Full definition of -yer
Suffix
- (rare, usually no longer productive) Agent suffix, equivalent to -er, appended to some nouns (especially those ending in the letter "w").