Integration

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mid 17th century: from Latin integrat- ‘made whole’, from the verb integrare, from integer ‘whole’ (see integer). Compare with integral and integrity.

wiktionary

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From French intégration, from Latin integratio.

Morphologically integrate +‎ -ion

etymonline

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integration (n.)

1610s, "act of bringing together the parts of a whole," from French intégration and directly from Late Latin integrationem (nominative integratio) "renewal, restoration," noun of action from past participle stem of Latin integrare "make whole," also "renew, begin again" (see integrate). Anti-discrimination sense (opposed to segregation) is recorded from 1934.