I. ˈ ̷ ̷ ̷ ̷ˌ ̷ ̷ noun
Usage: often attributive
Etymology: over (III) + time, n.
1. : time beyond or in excess of a set limit
the game went into overtime
played two overtime periods to break the tie
especially : working time in excess of a minimum total set for a given period
got in a lot of overtime this week
overtime pay
2. : an additional payment for overtime
earned some overtime this month
II. adverb
Etymology: over (II) + time, n.
: in excess of a set time limit
the game went overtime
or of the regular working time
is working overtime this week
must work overtime to make our land once again attractive to new ideas — A.E.Stevenson †1965
III. | ̷ ̷ ̷ ̷| ̷ ̷ transitive verb
Etymology: over (I) + time, v.
: to exceed the proper limit in timing (as a photographic exposure)