As a proper noun mommy
is (chiefly|used by young children) one's mother.
As a noun sommy is
.
mommy
English
Noun
(mommies)
(US, Canada, usually, childish) Mother.
Synonyms
* ma, mama, mamma, mom (qualifier), momma (US), mum (British), mummy (British)
sommy
English
Noun
(sommies)