Word: shelties
Part of speech: Noun
Syllables: shel
ties
Definition: Plural of sheltie;  but this caused controversy amongst Rough Collie breeders of the time, so the breed's name was formally changed
Morphemes:
Affix: sheltie
Language: en
PoS: Noun
Meaning: A Shetland sheepdog; a small sheepdog resembling a collie that was developed in the Shetland Islands
Affix: -s
Language: en
PoS: Suffix
Meaning: Used to form many pluralia tantum (nouns that are almost or entirely without singular forms).