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ripe [ripe 词源字典]: ripe: [OE] Ripe is restricted to the West Germanic languages – it has relatives in German reif and Dutch rijp. Its antecedents are uncertain, but some have linked it with reap [OE], as if its underlying meaning is ‘ready for harvesting’. And reap itself may go back to an Indo- European base *rei- ‘tear, scratch’, and hence denote etymologically ‘strip’ the fruits, seeds, etc from plants.
[ripe etymology, ripe origin, 英语词源]
glean (v.): early 14c., "to gather by acquisition, scrape together," especially grains left in the field after harvesting, but the earliest use in English is figurative, from Old French glener "to glean" (14c., Modern French glaner) "to glean," from Late Latin glennare "make a collection," of unknown origin. Perhaps from Gaulish (compare Old Irish do-glinn "he collects, gathers," Celtic glan "clean, pure"). Figurative sense was earlier in English than the literal one of "gather grain left by the reapers" (late 14c.). Related: Gleaned; gleaning.
harvest (v.): c. 1400, from harvest (n.). Of wild animals, by 1946; of cells, from 1946. Related: Harvested; harvesting.
astrobotany: "The (supposed) connection between plants and celestial objects; especially the practice of harvesting medicinal plants in accordance with astrology", Mid 19th cent. From astro- + botany.