Word: knewest
Part of speech: Verb
Syllables: knew
est
Definition: Alternative form of know; accept (someone) to be what is claimed or accept his power and authority
Morphemes:
Affix: knew
Language: en
PoS: Verb
Meaning: Alternative form of know; know how to do or perform something
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)