Word: grindest
Part of speech: Verb
Syllables: grin
dest
Definition: Alternative form of grind; shape or form by grinding
Morphemes:
Affix: grind
Language: en
PoS: Verb
Meaning: To shape with the force of friction.
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)