Word: knockback
Part of speech: Noun
Syllables: knock
back
Definition: A rejection; a refusal.
Morphemes:
Affix: knock
Language: en
PoS: Verb
Meaning: To strike for admittance; to rap upon, as a door.
Affix: back
Language: en
PoS: Verb
Meaning: To write upon the back of, possibly as an endorsement.