From atone, from Middle English atone, attone, atoon, equivalent to at + one. Compare Latin adūnō for the similar formation. Regarding the different phonological development of atone and one, see the note in one.
Modern English dictionary
Explore and search massive catalog of over 900,000 word meanings.
Word of the Day
Get a curated memorable word every day.
Challenge yourself
Level up your vocabulary by setting personal goals.