c. 1600, from remark (v.) + -able, or from or based on French remarquable (16c.), from remarquer. "Observable, worthy of notice," hence "extraordinary, exceptional, conspicuous." Related: Remarkably.
a remarkable sight
a remarkable achievement
remand
remanence
remanent
remark
re-mark
remarkable
remarriage
remarry
rematch
rematerialize
remediable