Modest

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mid 16th century: from French modeste, from Latin modestus ‘keeping due measure’, related to modus ‘measure’.

wiktionary

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From Middle French modeste, from Latin modestus

etymonline

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modest (adj.)

1560s, "having moderate self-regard, restrained by a sense of propriety or humility," from French modeste (14c.), from Latin modestus "moderate, keeping due measure, sober, gentle, temperate," from modus "measure, manner" (from PIE root *med- "take appropriate measures"). Of women, "not improper or lewd, pure in thought and conduct," 1590s; of female attire, "not gaudy or showy," 1610s. Of demands, etc., "not excessive or extreme," c. 1600. Related: Modestly.