-some

-some

1
a native English suffix formerly used in the formation of adjectives: quarrelsome; burdensome.

Origin:
Middle English; Old English -sum; akin to Gothic -sama, German -sam; see same

Dictionary.com Unabridged

-some

2
a collective suffix used with numerals: twosome; threesome.

Origin:
Middle English -sum, Old English sum; special use of some (pronoun)

-some

3
a combining form meaning “body,” used in the formation of compound words: chromosome.
Also, -soma.


Origin:
< Greek sôma body; see soma1

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
-some1
 
suffix forming adjectives
characterized by; tending to: awesome; tiresome
 
[Old English -sum; related to Gothic -sama, German -sam]

-some2
 
suffix forming nouns
indicating a group of a specified number of members: threesome
 
[Old English sum, special use of some (determiner)]

-some3 (-səʊm)
 
n combining form
a body: chromosome
 
[from Greek sōma body]

Collins English Dictionary - Complete & Unabridged 10th Edition
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Etymonline
Word Origin & History

-some
as a suffix forming adjectives, it represents O.E. -sum (see some; cf. O.Fris. -sum, Ger. -sam, O.N. -samr), related to sama "same." As a suffix added to numerals meaning "a group of that number" (cf. twosome) it represents O.E. sum "some," used after the genitive plural (cf.
sixa sum "six-some"), the inflection disappearing in M.E. Use of some with a number meaning "approximately" also was in O.E.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

-some suff.

  1. Body: centrosome.

  2. Chromosome: autosome.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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