Why, in the paradigm for Italian past participles ending in -ere, does the regular past participle end in -uto? Whence the vowel, when the other two paradigms have -ato and -ito?
benison c.1300, "blessing, beatitude," from O.Fr. beneiçon "blessing, benediction," from L. benedictionem (see benediction). Similarly, the word malison comes in the exact way described above. ...