-est


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-est 1

suff.
Used to form the superlative degree of adjectives and adverbs: greatest; earliest.
[Middle English, from Old English -est, -ast, -ost.]

-est 2

or -st
suff.
Used to form the archaic second person singular of English verbs: comest.
[Middle English, from Old English -est, -ast.]
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.

-est

suffix
forming the superlative degree of adjectives and adverbs: shortest; fastest.
[Old English -est, -ost]

-est

or

-st

suffix
forming the archaic second person singular present and past indicative tense of verbs: thou goest; thou hadst.
[Old English -est, -ast]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

EST

or E.S.T.,

Eastern Standard Time.

-est1

,
a suffix forming the superlative degree of adjectives and adverbs: fastest; soonest; warmest.
[Middle English; Old English -est, -ost]

-est2

or -st,
an ending of the second person singular indicative of verbs, now occurring only in archaic forms or used in solemn or poetic language: knowest; sayest; goest.
[Middle English; Old English -est, -ast, -st, 2nd pers. singular present indic. endings of some verbs (-s earlier v. ending + -t, by assimilation from thū thou1) and 2nd pers. singular past endings of weak verbs (earlier -es + -t)]

est.

1. established.
2. estate.
3. estimate.
4. estimated.
5. estuary.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.