Honesty
Middle English: from Old French honeste, from Latin honestas, from honestus (see honest). The original sense was ‘honour, respectability’, later ‘decorum, virtue, chastity’. The plant is so named from its seed pods, translucency symbolizing lack of deceit.
wiktionary
From Middle English honeste(“honour, integrity”), from Old French honesté (compare modern French honnêteté) ( honest + -y); the plant, from the visibility of the seeds through the translucent pods.
etymonline
honesty (n.)
early 14c., "splendor, honor; elegance," later "honorable position; propriety of behavior, good manners; virginity, chastity" (late 14c.), from Old French oneste, honesté "respectability, decency, honorable action" (12c., Modern French uses the variant honnêteté, as if from Latin *honestitatem), from Latin honestatem (nominative honestas) "honor received from others; reputation, character;" figuratively "uprightness, probity, integrity, virtue," from honestus (see honest). Meaning "moral purity, uprightness, virtue, justness" is from c. 1400; in English, the word originally had more to do with honor than honest.