| a native English suffix formerly used in the formation of adjectives: quarrelsome; burdensome. |
| a collective suffix used with numerals: twosome; threesome. |
| -some 1 suff. Characterized by a specified quality, condition, or action: bothersome. [Middle English -som, from Old English -sum, -like; see sem-1 in Indo-European roots.] |
| -some 2 suff. A group of a specified number of members: threesome. [Middle English -sum, from Old English sum, some; see some.] |
| -some 3 suff.
[From Greek sōma, body; see teuə- in Indo-European roots.] |
-some suff.
Body: centrosome.
Chromosome: autosome.
