Mid 18th century: from Scottish Gaelic feileadh-beag ‘little kilt’, from feileadh ‘plaid’ and beag ‘little’.
“But what’s he got under his filibeg, that’s the question!”
Having or encouraging an excessive interest in sexual matters, especially the sexual activity of others.
Late 16th century (in the sense ‘having a mental itching’): from Latin prurient- ‘itching, longing’ and ‘being wanton’, from the verb prurire.
Secretly allow (something immoral, illegal, or harmful) to occur.
Conspire to do something immoral, illegal, or harmful.
Early 17th century: from French conniver or Latin connivere ‘shut the eyes (to)’, from con- ‘together’ + an unrecorded word related to nictare ‘to wink’.