"manner of behaving (whether good or bad), conduct, manners," late 15c., essentially from behave, but with ending from Middle English havour "possession," a word altered (by influence of have) from aver, noun use of Old French verb aveir "to have."
the behavior of small particles can be studied in experiments
beguiling
Beguine
begun
behalf
behave
behavior
behavioral
behaviorism
behaviour
behavioural
behead
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