Word: dammest
Part of speech: Verb
Syllables: dammest
Definition: Alternative form of dam; obstruct with, or as if with, a dam
Morphemes:
Affix: dam
Language: en
PoS: Verb
Meaning: To block the flow of water.
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)