quamdiu

Compound of quam (“how”) + diū (“long”)

• (Classical) IPA^(key): /ˈkʷan.di.uː/, [ˈkʷän̪d̪iuː]
• (modern Italianate Ecclesiastical) IPA^(key): /ˈkwan.di.u/, [ˈkwän̪d̪iu]

quamdiū (not comparable)

1. how long

   Synonym: quousque

   • Seneca Minor, Epistulae Morales ad Lucilium, Epistle CI

     Quam bene vivas, non quamdiu.

     How well you live, not how long.

2. as long as, until, during

• “quamdiu”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• quamdiu in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition with additions by D. P. Carpenterius, Adelungius and others, edited by Léopold Favre, 1883–1887)
• quamdiu in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.