Quidni
Quidni is a Latin form of quis, meaning “who? what?; (after si, ne) anyone”. It is the nominative singular neuter pronoun or accusative singular neuter pronoun.
Found 151 times in the Latin texts on Socratos.
Where it is used
Cicero, In C. Verrem 2.2.80: quid enim horum se negat fecisse? illud videlicet unum, quod necesse est, pecuniam accepisse. quidni iste neget? at eques Romanus, qui Sopatrum defendit, qui omnibus eius consiliis rebusque interfuit, Q. Minuci …
Cicero, Tusculanae Disputationes 5.12: … is. Potes igitur aut, qui male vivat, non eum miserum dicere aut, quem bene fateare, eum negare beate vivere? Quidni possim? nam etiam in tormentis recte honeste laudabiliter et ob eam rem bene vivi potest, dum modo intellegas …
Source: Socratos (socratos.org), a free reader for Ancient Greek and Latin. Grammar from the Perseus Treebank and Morpheus; dictionary entries from Lewis & Short, A Latin Dictionary (Perseus Digital Library, CC BY-SA). Counts are from the texts on Socratos.