Word mod co/con
An initial 'co' may be rendered by 'con'
conlatio N 3 1 NOM S F
conlatio N 3 1 VOC S F
conlatio, conlationis N (3rd) F [XXXBO]
placing/putting together, combination; data collation; (payment of) tribute/tax
comparison; [grammatical secunda ~/tertia ~ => comparative/superlative];

Credits:
This, our local install of the popular standby Whitaker's Words, is possible thanks to the resurrection of the venerable project at William Whitaker's Words, where you will also find extensive documentation. The corresponding GitHub repository is where you can submit issues about missing forms and analyses.
This web interface by Walter M. Shandruk.