habituation
noun
[ həbɪtʃʊˈeɪʃ(ə)n ]
• the action or process of becoming habituated.
• "the training of the horse does not depend on force but on habituation"
Origin:
late Middle English (in the sense ‘formation of habit’): from French or from Latin habitatio(n)-, from late Latin habituare (see habituate).
