-er
1-er
adjective suffix or adverb suffixDefinition of -ER
—used to form the comparative degree of adjectives and adverbs of one syllable <hotter> <drier> and of some adjectives and adverbs of two or more syllables <completer> <beautifuller>
Origin of -ER
Middle English -er, -ere, -re, from Old English -ra (in adjectives), -or (in adverbs); akin to Old High German -iro, adjective comparative suffix, Latin -ior, Greek -iōn
2-er
noun suffixDefinition of -ER
1
a : person occupationally connected with <furrier> <lawyer> b : person or thing belonging to or associated with <header> <old-timer> c : native of : resident of <cottager> <New Yorker> d : one that has <three-decker> e : one that produces or yields <porker>
2
a : one that does or performs (a specified action) <batter> —sometimes added to both elements of a compound <builder-upper> b : one that is a suitable object of (a specified action) <broiler>
3
: one that is <foreigner> —in all senses -yer in a few words after w, -ier in a few other words, otherwise -er
Variants of -ER
-er also -ier or -yer
Seen & Heard 
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