LATIN DICTIONARYLexicon Latīnum
adverb

istāctenus

istāctenus (not comparable)
Classical[ɪsˈtaːk.tɛ.nʊs]Ecclesiastical[isˈtak.te.nus]

Meaning

  1. not comparablethus far

istac-tĕnus, adv.,
I. thus far: istactenus tibi, Lyde, libertas data'st, Plaut. Bacch. 1, 2, 58.

Origins

From istāc + tenus.

Quick answers

What does istāctenus mean in Latin?
istāctenus, a adverb, means “thus far”.
How do you pronounce istāctenus?
In classical Latin, [ɪsˈtaːk.tɛ.nʊs]; in ecclesiastical (church) Latin, [isˈtak.te.nus].