Home › Words › F › farthenfarthenfarthen · verb — to make or become farther; increase in distance.Definition from Wiktionary (CC BY-SA 3.0).EtymologyFrom farth(er) + -en.verbTo make or become farther; increase in distance.e.g.“Covering this zone there is a porous transition zone with a thickness from 10 to 20 micrometers, which becomes more compacted as it farthens from the fibre.” — 1992, J.C. Maso, Interfaces in Cementitious Composites:Definitions & examples from Wiktionary (CC BY-SA 3.0).