depereo

Etymology
From.

Verb

 * 1)  to perish, to be ruined, to get lost, to go awaste
 * 2) *  530 – 533, Justinian I, Dīgesta seu Pandectae 17.1.8.6:
 * Mandāvī, ut negōtia gererēs: sī nihil dēperierit, quamvīs nēmō gesserit, nūlla āctiō est, aut sī alius idoneē gesserit, cessat mandātī āctiō.
 * I mandated you to manage some affairs: if nothing got lost even though nobody managed them, no claim arises, or if somebody manages alike, the claim from the mandate cedes.
 * 1)  to be desperately in love with, to love to distraction
 * 1)  to be desperately in love with, to love to distraction

Conjugation
Third-person singular passive forms are scantily attested in Medieval texts.