Where does “behaviorist” come from?

Behaviorist comes from English behavior plus the suffix -ista from Latin, which derives from Ancient Greek -ιστής, itself from the Ancient Greek verb -ίζω meaning to practice or engage in, tracing back through Proto-Indo-European roots.

behaviorist (English): One who studies behavior of humans or animals

Definitions

  1. One who studies behavior of humans or animals

Ancestry of “behaviorist”, step by step

behaviorist traces back through two separate lines of ancestry.

via English behaviourist

StepLanguageWordMeaning
1EnglishbehaviouristBritain standard spelling of behaviorist
2EnglishbehaviourThe way a living creature behaves or acts; The...
3English-iourSuffix added to verbs to form nouns; Alternative...
4English-our
5Middle English-our
6Old French-eorAlternative form of -or
7Latin-ator-ator, -er; second-person singular future passive...
8Latin-tor-er
9Proto-Italic-tōrForms agent nouns to verb stems
10Proto-Indo-European-tōrDerives agent nouns from verbs, denoting someone...
11Proto-Indo-European-tor-s

via English behavior

StepLanguageWordMeaning
1EnglishbehaviorHuman conduct relative to social norms; The way a...
2Middle Englishbehavoure

Words derived from “behaviorist

Every word from Proto-Indo-European -tor-s