Definition of "wherethrough" in English

adverb

1. (archaic) Through which.

   • There was also a small window, wherethrough a prisoner might conceivably escape.

2. (obsolete) By means of which; whereby.

   • 1874, Ernest Myers (transl.), The Extant Odes of Pindar, translated into English, Olympian Ode V, page 16. […] the river Oanis, and the lake of his native land, and the sacred channels wherethrough doth Hipparis give water to the people, […]