Word: gravest
Part of speech: Verb
Syllables: grav
est
Definition: Alternative form of grave; dignified and somber in manner or character and committed to keeping promises
Morphemes:
Affix: grave
Language: en
PoS: Adjective
Meaning: Characterised by a dignified sense of seriousness; not cheerful.
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)