dí, [di], v. it is necessary, (one) must
usage: The "subject" of the main verb (in the infinitive) is in the accusative; dí occurs first in its clause.
etymology: From Ancient Greek δεῖ.A highly defective impersonal verb. Among finite forms, only third person singular forms exist: present dí, subjunctive dè, future gesi ['dʒɛsi], past evi ['evi]. Aspect is indicated on the main verb's infinitive. An infinitive desa ['deza] also exists, along with a participle deio, deiusa, deiu.