-ster
-ster
suff.
1. One that is associated with, participates in, makes, or does: songster. See Note at pollster.
2. One that is: youngster.
[Middle English, from Old English -estre, female agent suff.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
-ster
suffix forming nouns
2. indicating a person associated with or being something specified: mobster; youngster.
[Old English -estre]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
-ster
a suffix used in forming nouns, often derogatory, referring esp. to occupation, habit, or association: gamester; songster; trickster.
[Middle English; Old English -estre, c. Middle Dutch -ster, Middle Low German -(e)ster]
ster.
sterling.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.