| Question | Answer | Derivatives |
| comprehendō -ere, -ī, comprehēnsus | to grasp; arrest; comprehend | (comprehension) |
| cōnfīrmō -āre, -āvī, -ātum | to strengthen; to establish; to confirm | (confirmation) |
| coniciō -ere, coniēcī, coniectus | to throw, hurl | (conjecture) |
| coniūnx coniugis (M/F) | spouse, wife, husband | (conjugal) |
| cōnor -ārī, -ātus sum | to try conation | () |
| cōnsilium capere | to form a plan | () |
| cōnsilium -ī (N) | advice, plan; council | (counsel) |
| cōnsistō -ere, cōnstitī, constitus | to stand, stop | (consistent) |
| cōnspiciō -ere, cōnspexī, cōnspectus | to catch sight of, see | (conspicuous) |
| cōnstituō -ere, cōnstituī, cōnstitūtus | to place, station, establish; decide, determine | (constitution) |
| cōnsuētūdō cōnsuētūdinis (F) | custom | () |
| cōsuēscō, cōnsuēvī -isse, cōnsuētus | to be accustomed [pf. forms w. pres. meaning] | () |
| contineō -ēre, -uī, contentus | to contain, restrain, confine | (content) |
| contrōversia -ae (F) | dispute, controversy | (controversial) |
| conveniō -īre, convēnī, conventus | to come together, meet, gather | (convention, convent) |
| cōpia -ae (F) | supply; resource; [pl.] forces, troops | (copious) |
| cor cordis (N) | heart, spirit, feelings | (cordial, discord) |
| corpus corporis (N) | body | (corporation, corporal) |
| corripiō -ere, -uī, correptum | to seize, snatch, grab | (correption) |
| crēdō -ere, crēdidī, crēditus | to believe, trust | (credit) |
| crūdēlis crūdēle | cruel, bloody | (crude) |
| cum (conj.) | when, since; although | () |
| cūra -ae (F) | anxiety, distress, care, concern | (curator, accurate) |
| cursus -ūs (M) | running, running course; haste | (incursion, cursor) |
| Danaus -ī (M) | Greek, of Danaus [a king of Greece] | (Danaan) |
| dē (prep. w/ abl.) | down from, away from; concerning | () |
| dea -ae (F) | goddess | (deity) |
| dēferō dēferre, dētulī, dēlātum | to bring down; report | (deference) |
| dēmittō -ere, dēmīsī, dēmissum | to drop, let down; shed | (demise) |
| dēmōnstrō -āre, -āvī, -ātum | to show; to describe | (demonstrative) |
| dēsum dēesse, dēfuī, dēfutūrum | to be lacking, fail | () |
| deus –ī (M) | god | deify |
| dexter dextra, dextrum | right, to the right; skillful; favorable | (ambidextrous, dexterity) |
| dīcō -ere, dīxī, dictum | to say, speak; to name, define | (contradict, dictator) |
| diēs diēī (M or F) | day | (diurnal) |
| discēdō -ere, discessī, discessūrus | to depart | () |
| disciplīna -ae (F) | instruction; system, method | (disciplinary) |
| dō dare, dedī, datum | to give, put, appoint; to grant, honor | (data, tradition, dative) |
| dolor doloris (M) | anguish, distress, pain | (dolorous, doleful) |
| domus -ūs (F) | house, home; building; family | (domestic, domicile) |
| Druidēs -um (M pl.) | Druids | (Druidic) |
