quidni

• quid nī (also in tmesis)

quid (“what, why”) +‎ nī (“unless, if not”), i.e. "how else?".

• (Classical Latin) IPA^(key): [ˈkʷɪn.niː]
• (modern Italianate Ecclesiastical) IPA^(key): [ˈkʷid̪.ni]

quidnī? (not comparable)

1. (with subjunctive) alternative form of quidnī (“why wouldn't one? naturally, sure, of course”)

   Quidnī, inquit, meminerim?

   "How couldn't I remember?", says he

• See quid nī.

• “quidni”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• “quidni”, in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
• quidni in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.