-int-

Etymology
The i vowel of past-tense -is plus the nt of the Latin/Romance active present participle.

Suffix

 * 1)  -into One who did the action of the root
 * Example: ami (to love), aminto (one who has loved)
 * 1)  -inta The active past participle
 * Example: ami (to love), aminta (having loved)
 * 1)  -inte The active past adverbial participle
 * Example: ami (to love), aminte (having loved)