Word: twinsome
Part of speech: Noun
Syllables: twin
some
Definition: A group of two, especially two twins
Morphemes:
Affix: twin
Language: en
PoS: Adjective
Meaning: forming a pair of twins.
Affix: -some
Language: en
PoS: Suffix
Meaning: Denoting a group with a certain small number of members.