- a diminutive or pejorative suffix denoting something that imperfectly resembles or mimics the true thing: criticaster; poetaster, oleaster.
Origin of -aster1
- Chiefly Biology. a combining form with the meaning “star,” used in the formation of compound words: diaster.
Origin of -aster2
- a person or thing that is inferior or bears only a poor resemblance to what is specifiedpoetaster
Word Origin and History for -aster
word-forming element expressing incomplete resemblance (e.g. poetaster), usually diminutive and deprecatory, from Latin, from Greek -aster, suffix originally forming nouns from verbs ending in -azein, later generalized as a pejorative suffix, e.g. Greek patraster "he who plays the father."