| Date: | 1300-1400 |
| Language: | Latin |
| Origin: | , past participle of apere 'to fasten' |
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apt

1 to have a natural tendency to do something :
Some of the staff are apt to arrive late on Mondays.
be apt to do something
Some of the staff are apt to arrive late on Mondays.2 exactly right for a particular situation or purpose [= appropriate]:
—aptness noun [uncountable]
