Meaning of -EN in English
[-en] also -n adj suffix [ME, fr. OE; akin to OHG -in made of, L -inus of or belonging to, Gk -inos made of, of or belonging to]: made of: consisting of "earthen" "leathern"
-en vb suffix [ME -nen, fr. OE -nian; akin to OHG -inon -en] 1 a: cause to be "sharpen" b: cause to have "lengthen"
2. a: come to be "steepen" b: come to have "lengthen"
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012