a diminutive or pejorative suffix denoting something that imperfectly resembles or mimics the true thing: criticaster; poetaster, oleaster.
English Affixes From A To Z: A One-Stop List Of Suffixes, Prefixes, and Combining FormsIn English, we love to make new words by adding all sorts of bits to the front and back of existing terms. These are called affixes, and they are added to the base or stem of a word. When attached to the end of word, the affix is called a suffix. And to the beginning? A prefix.
Origin of -aster1
Definition for -aster (2 of 2)
Chiefly Biology. a combining form with the meaning “star,” used in the formation of compound words: diaster.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for -aster
suffix forming nouns
a person or thing that is inferior or bears only a poor resemblance to what is specifiedpoetaster
Word Origin for -aster
from Latin: suffix indicating imperfect resemblance
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012