Relating to, involving, or tending to arouse sexual desire or romantic passion.
From French érotique, from Greek erōtikos, derived from erōs 'sexual love.' The -al suffix was added in English to create an adjectival form, common from the 18th century onward.
The word comes straight from Eros, the Greek god of love, but it originally just meant anything related to love and desire—it only got narrowed down to sexual meaning much later as attitudes about discussing such topics changed.
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