A language dislexifies two senses if it must express them using different lexical forms. Thus, Spanish dislexifies the two senses ‘wood as material’ (madera) and ‘firewood’ (leña). […] In sum, the two senses in question are dislexified in Spanish, but colexified in English. […] A language may dislexify two senses at a certain point in history, but its descendant may colexify them, or vice versa.
Source: wiktionary