Word: knightdom
Part of speech: Noun
Syllables: knight
dom
Definition: The sphere or world of knights; knights collectively
Morphemes:
Affix: knight
Language: en
PoS: Noun
Meaning: A person on whom a knighthood has been conferred by a monarch.
Affix: -dom
Language: en
PoS: Suffix
Meaning: Forming nouns denoting the domain or jurisdiction of the suffixed word.