behavior.
Human conduct relative to social norms.
Meaning & usage
Human conduct relative to social norms.
An inappropriate or forbidden action.
When a patient has a behavior, document it in their records.
The way or manner a living creature behaves or acts generally.
A state of probation about one's conduct.
He was on his best behavior when her family visited.
An observable response produced by an organism.
The way a device or system operates.
Where this word comes from
Etymology tree Proto-Indo-European *h₁ep-der. Proto-Indo-European *h₁épsder. Proto-Indo-European *h₁épider. Proto-Indo-European *h₁pi Proto-Germanic *bider. Proto-Germanic *bi- Proto-West Germanic *bi- substratebor.? Proto-Indo-European *kap-der. Proto-Germanic *habjaną Proto-West Germanic *habbjan Proto-West Germanic *bihabbjan Old English behabban Middle English behaven Proto-Indo-European *gʰeh₁bʰ- Proto-Indo-European *-éh₁ti Proto-Indo-European *-yeti Proto-Indo-European *-éh₁yeti Proto-Indo-European *gʰh₁bʰéh₁yeti Proto-Italic *haβēō Latin habeō Old French avoirbor. Middle English havour Middle English behavoure English behavior From Middle English behavoure, behaver, from behaven (modern behave), morphologically equivalent to behave + -ior. The suffix was adopted in imitation of havour (modern haviour, havior), an etymologically unrelated word that was corrupted from Anglo‐Norman Anglo-Norman aveir and Old French Old French avoir (“property, wealth”) through false association with the native English verb have. The French term derives ultimately from Latin Latin habēre (“to have, hold”). Compare Scots havings (“behavior”), from have (“to behave”). Replaced Old English ġebǣru.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.