Word: couldest
Part of speech: Verb
Syllables: coul
dest
Definition: Alternative form of can; preserve in a can or tin
Morphemes:
Affix: could
Language: en
PoS: Verb
Meaning: Alternative form of can; the fleshy part of the human body that you sit on
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)