BOTOGENIN

bōˈtäjənə̇n, ˌbäd.əˈjenə̇n noun

( -s )

Etymology: boto- (perhaps irregular from Spanish batata sweet potato) + -genin — more at potato

: a crystalline steroidal sapogenin C 27 H 40 O 4 obtained from a yam ( Dioscorea mexicana )