Word: knockest
Part of speech: Verb
Syllables: knockest
Definition: Alternative form of knock; deliver a sharp blow or push :
Morphemes:
Affix: knock
Language: en
PoS: Verb
Meaning: To bump or impact.
Affix: -est
Language: en
PoS: Suffix
Meaning: Used to form the second-person singular present tense and past tense of verbs. (if thou is the subject; not used with you)