grind
How to Use Grind
Learner’s notesIn plain EnglishTo crush something into smaller bits, or to put in sustained, exhausting effort.
Word Forms
ground past tense, grinded past tense, grounden past tense, grind plural, ground plural, grinded plural, grinds plural, grinds singular, grind singular, ground singular, grindest singular, groundst singular, groundest singular, grindeth singular, grinded singular
Fill the Gap
Can you complete this real example?
He's been _____ away at his thesis for months.
Etymology
From Old English grindan, going back to a Proto-Germanic root simply meaning "to grind" — the "hard, repetitive work" sense developed much later as a figurative extension.