-met

Etymology
Probably related to the ablative form of the first person singular personal pronoun,, which was in Old Latin.

Suffix

 * 1) an intensifier of substantive and less frequently adjective personal pronouns, it is usually followed by "ipse"
 * 2) * ego meaning "I" → egomet meaning "I myself"
 * 3) * mihi the dative of ego → mihimet meaning "to myself"
 * 4) * me the ablative and accusative of ego → memet meaning "me myself" or "myself"
 * 5) * nos meaning "we" → nosmet meaning "ourselves"
 * 6) * nobis the ablative and dative of nos → nobismet meaning "to/in/with ourselves"
 * 7) * tu meaning "you" + te the ablative and accusative of tu → tutemet meaning "you yourself"
 * 8) * tibi the dative of tu → tibimet meaning "to you yourself"
 * 9) * vos meaning "you (people)" or "ye" → vosmet meaning "yourselves"
 * 10) * mea meaning "my" or "mine" → meamet meaning "my very own"
 * 11) * se → semet meaning "himself"
 * 12) * sua → suamet meaning "his very own"