BENE, BEN
good
benevolent, benefactor, beneficent, benign
BELLI, BELL
war
belligerent, bellicose, antebellum, rebellion
BI
two
bicycle, bisect, bilateral, bilingual, biped
BIBLIO
book
Bible, bibliography, bibliophile
BIO
life
biography, biology, amphibious, symbiotic, macrobiotic
BURS
money, purse
reimburse, disburse, bursar