Meaning

adjective relating to only one sex or having only one type of sexual organ; not hermaphroditic

originEtymology tree Proto-Indo-European *ís? Proto-Indo-European *h₁óynos Proto-Italic *oinos Old Latin oinos Latin ūnus Latin ūni-der. English uni- Proto-Indo-European *sek-der. Proto-Indo-European *séks-u-sder. Proto-Italic *seksus Latin sexus Proto-Indo-European *h₂el-der.? Proto-Italic *-ālis Latin -ālis Latin sexuālisbor. English sexual English unisexual From uni- + sexual.

Etymology from Wiktionary, CC BY-SA 3.0