Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
cŏ-haerentĭa, ae, f. [cohaereo], a cohering, coherence, connection (rare): mundi, * Cic. N. D. 2, 62, 155: regionum, Macr. S. 5, 15: mortis et vitae, Gell. 6, 13, 11: vocis, id. 15, 3, 6.