Turning Adjectives into Adverbs
Adverbs formed from a- and o-declension adjectives end in -e. Adverbs from i-declension adjectives are formed by adding -ter or -iter to the genitive singular stem. Some adverbs are "irregular," and some adverbs are not based on any adjective.
| ADJ. | gen. | ADV. |
| altus | alte | |
| latus | late | |
| longus | longe | |
| miser | misere | |
| pulcher | pulchre | |
| acer | acris | acriter |
| audax | audacis | audacter |
| celer | celeris | celeriter |
| fortis | fortis | fortiter |
| bonus | bene | |
| difficilis | difficile | |
| facilis | facile | |
| magnus | magnopere | |
| malus | male | |
| parvus | parvum | |
| primus | primum | |
| solus | solum | |
| nunc | ||
| semper | ||
| non |