Seminary

google

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late Middle English (denoting a seed plot): from Latin seminarium ‘seed plot’, neuter of seminarius ‘of seed’, from semen ‘seed’.

wiktionary

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From Latin sēminārium, from sēmen(“seed”). Compare seminar.

etymonline

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seminary (n.)

mid-15c., "plot where plants are raised from seeds," from Latin seminarium "plant nursery, seed plot," figuratively, "breeding ground," from seminarius "of seed," from semen (genitive seminis) "seed" (from PIE root *sē- "to sow"). Meaning "school for training priests" first recorded 1580s; commonly used for any school (especially academies for young ladies) from 1580s to 1930s.