I. ˈfen noun
Etymology: Middle English, from Old English fenn; akin to Old High German fenna fen, Sanskrit paṅka mud
Date: before 12th century
: low land that is covered wholly or partly with water unless artificially drained and that usually has peaty alkaline soil and characteristic flora (as of sedges and reeds)
II. ˈfən noun
( plural fen )
Etymology: Chinese (Beijing) fēn
Date: 1916
— see yuan at money table