Eventual

google

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early 17th century (in the sense ‘relating to an event or events’): from Latin eventus (see event), on the pattern of actual .

wiktionary

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From event +‎ -ual; compare French éventuel. The third sense is influenced by any of several European languages, including German eventuell, French éventuel, Italian eventuale, Spanish eventual.

etymonline

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eventual (adj.)

1610s, "pertaining to events," from French éventuel, from Latin event-, stem of evenire "to come out, happen, result" (see event). Meaning "ultimately resulting" is by 1823.