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The Collaborative International Dictionary
lasciviency

lasciviency \las*civ"i*en*cy\ (l[a^]s*s[i^]v"[i^]*en*s[y^]), n. Lasciviousness; wantonness. [Obs.]

Wiktionary
lasciviency

n. (context obsolete English) The quality of being lascivious or wanton.