Maturity

google

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late Middle English: from Latin maturitas, from maturus (see mature).

wiktionary

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mature +‎  -ity, from Latin maturitas. 

etymonline

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maturity (n.)

early 15c., "maturity of character;" mid-15c., "ripeness, completeness, full development," from Old French maturité and directly from Latin mātūritatem (nominative mātūritas) "ripeness," from mātūrus "ripe" (see mature (v.)). Financial sense "time fixed for payment of an obligation" is by 1815.