Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
congrŭentĭa, ae, f. [congruo], agreement, harmony, congruity, symmetry (postAug. and very rare): morum, * Suet. Oth. 2: (corporis), with aequalitas, Plin. Ep. 2, 5, 11: pronuntiandi, App. Mag. p. 283, 15 al.