whence

Etymology

From Middle English whennes, from Old English hwanon (with adverbial genitive -s), related to hwonne (whence when). Analyzable as when + -s.

adv

1. (archaic, formal or literary) From where; from which place or source.
   Whence came I?
   "Pork" comes from French, whence we get most of our modern cooking terms.
   O suitably-attired-in-leather-boots Head of a traveller, wherefore seeking whom Whence by what way how purposed art thou come To this well-nightingaled vicinity? 1883, A. E. Housman, Fragment of a Greek Tragedy

conj

1. (literary, poetic) Used for introducing the result of a fact that has just been stated; thence
   The work is slow and dangerous, whence the high costs.
   I scored more than you in the exam, whence we can conclude that I am better at the subject than you are.