c. 1600, from Latin disseminatus, past participle of disseminare "to spread abroad, disseminate," from dis- "in every direction" (see dis-) + seminare "to plant, propagate," from semen (genitive seminis) "seed" (from PIE root *sē- "to sow"). Related: Disseminated; disseminates; disseminating. Middle English had dissemen "to scatter" (early 15c.).
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