(げん) (n) (1) {math} unknown (e.g. in an equation); (2) {math} element (of a set); (3) yuan (monetary unit of China); (4) Yuan dynasty (China) [EDICT]
(もと) (n) (1) (usu. 元) origin; source; (2) (esp. 基) base; basis; foundation; root; (3) (also 因, 原) cause; (4) (esp. 素) ingredient; material; (5) (元 only) (somebody's) side; (somebody's) location; (6) original cost (or capital, principal, etc.); (7) (plant) root; (tree) trunk; (8) (See 和歌) first section of a waka; (ctr) (9) (本 only) counter for blades of grass, tree trunks, etc., and for falcons (in falconry); (n) (10) handle (chopsticks, brush, etc.); grip; (P) [EDICT]
(もと) (n,adj-no,n-adv,n-pref) former; ex- [EDICT]
(yuán, ㄩㄢˊ) Chinese monetary unit; dollar; primary; first; the Yuan or Mongol dynasty (1279-1368); surname Yuan [CE-DICT]
跟
(gēn, ㄍㄣ) heel; to follow closely; to go with; to marry sb (of woman); with; towards; as (compared to); from (different from); and (in addition to) [CE-DICT]
丢
(diū, ㄉㄧㄡ) to lose; to put aside; to throw [CE-DICT]