Charak Samhita
इत्युक्तमृतुसात्म्यं यच्चेष्टाहारव्यपाश्रयम्। उपशेते यदौचित्यादोकःसात्म्यं तदुच्यते ॥४९॥
॥ Okasatmya(acquired adaptation or habituation)॥ In this way, we discussed about seasonal adaptations with respect to activities and diet. If any diet and lifestyle become suitable to the body by its regular/habitual use then it is called okasatmya (acquired adaptation or habituation).
english translation
ityuktamRtusAtmyaM yacceSTAhAravyapAzrayam। upazete yadaucityAdokaHsAtmyaM taducyate ॥49॥
hk transliteration by Sanscript