What does quantīsper mean in Latin?

quantīsper, a adverb, means “how long, for how long”.

adverb

quantīsper

quantīsper (not comparable)

interrogativenot comparablerelationalhow long, for how long
Nonius: velim paulisper opperiri te. Quantisper? Non plus triduumNonius: I might want to wait a short time. For how long you ask? For no more than three days.c. 180 BCE, Caecilius Statius, Ephesio 511, 30

quantisper, adv. [quantum, how much),

I. how long (ante-class.).

1. Interrog.: velim paulisper opperiri te. Quantisper? Non plus triduum, Caecil. ap. Non. 511, 30.—

2. Rel.: possum exorare te, ut recedas a me paulisper modo? Quantisper sat habes, as long as, Pompon. ap. Non. 511, 33.

Univerbation of quantīs (“how much, of what size”, abl. pl.) + -per (“through”), originally a postpositional phrase.