The Collaborative International Dictionary
Succuba \Suc"cu*ba\, n.; pl. Succub[ae]. [NL., fr. L. succubare to lie under; sub under + cubare to lie down; cf. L. succuba, succubo, one who lies under another.] A female demon or fiend. See Succubus.
Though seeming in shape a woman natural
Was a fiend of the kind that succub[ae] some call.
--Mir. for
Mag.
Wiktionary
n. (plural of succuba English)
Usage examples of "succubae".
Incubi and succubae howled praise to Hecate, and headless moon-calves bleated to the Magna Mater.
It tortured her mind to know that her child's soul had bottomed out on the succubae level two.
Nobody but Malone, among those who inspected them, remembered the sombre question of old Delrio: 'An sint unquam daemones incubi et succubae, et an ex tali congressu proles nasci queat?