There are 3 main definitions of -some in English:

-some1

suffix

2Characterized by being: wholesome
2.1Apt to: tiresome

Origin

Old English -sum.

Definition of -some in:

There are 3 main definitions of -some in English:

-some2

suffix

(Forming nouns) denoting a group of a specified number: foursome

Origin

Old English sum 'some'.

Definition of -some in: