Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
Cūnīna, ae, f. [cunae], the goddess who protects children in the cradle, Varr. ap. Non. p. 167, 32; Lact. 1, 20, 36; Aug. Civ. Dei, 4, 11; Inscr. Grut. 96, 9.