Pepiros
From Simon Online
Pepiros grece maturus digestus.
Apparatus:
{digestus} idem add. f
Translation:
Pepiros is Greek for Latin maturus {"ripe, mature"} and digestus {"digested"}.
Commentary:
Greek πέπειρος /pépeiros/ is "ripe (of fruit); mild (of person); (a disease) coming to crisis point".
By Simon's time the classic diphthong ει {/ei/} had undergone a sound change ει > ι {/ei/ > /i/}, which is reflected in Simon's transcription /pépeiros/ > /pépiros/.