Word: sevennights
Part of speech: Noun
Syllables: se
ve
nnights
Definition: Plural of sevennight; a time unit equal to seven days
Morphemes:
Affix: seven
Language: en
PoS: Noun
Meaning: The digit/figure 7 or an occurrence thereof.
Affix: night
Language: en
PoS: Noun
Meaning: Often defined in the legal system as beginning 30 minutes after sunset, and ending 30 minutes before sunrise.
Affix: -s
Language: en
PoS: Suffix
Meaning: Used to form many pluralia tantum (nouns that are almost or entirely without singular forms).