behaved; behaving
Definition of behave
1
: to manage the actions of (oneself) in a particular way
2
: to conduct (oneself) in a proper manner
getting children to behave themselves
1
: to act, function, or react in a particular way
He behaves like a child. testing how various metals behave under heat and pressure
2
: to conduct oneself properly
Please behave.
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Merriam-Webster unabridged
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Time Traveler for behave
The first known use of behave was in the 15th century
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