| A | B |
| clam | silently, secretly |
| classis, classis f. | a class of society, the fleet |
| cogo, cogere, coegi, coactum | to bring together |
| cohors, cohortis f. | a troop of soldiers |
| cohortor, cohortari, | to encourage |
| collis, collis m. | hill |
| colloco, collocare | establish, place |
| colloquium, colloquii n. | conference |
| colloquor, colloqui | talk together, discuss |
| commeatus, commeatus m | trade, commerce |
| committo, committere, commisi, commissum | to bring together in battle |
| commodus, commoda, commodum | convenient |
| commoveo, commovere, commovi, commotum | to arouse |
| communis, communis, commune | in common, public |
| comparo, compare | to buy, prepare |
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