Lewis Short
(adverb) : illātĕnus or illactĕnus, illetenus
* So far (post-class. and very rare): navitas precum ejus (Arionis) commiseritum esse illactenus, ut, etc.,Gell. 16, 19, 11: litteras illatenus, qua dixi, legendas praebebat,App. Mag. p. 326; cf. Fronto Ter. Als. 4.
Charlton T. Lewis, Charles Short, A Latin Dictionary