Greek and Latin roots in English_B

Root	Meaning in English	Origin language	Etymology (root origin)	English examples
bac-	rod-shaped	Latin	baculum	baculiform, baculum
bal-, bol-	throw	Greek	ballein	ball, ballista, ballistic, devil, diabolic, hyperbole, metabolism, parable, problem, symbol
bar-	weight, pressure	Greek	βάρος (baros)	barograph, barometer, barostat
basi-, bas-, basio-, basir-, baso-	at the bottom	Greek	βάσις (basis) "step", from βαίνω (bainō), "I walk, march"	base, basic, basis, basicranial, basioglossal, basirrhinal, basommatophoric, basolateral, debase
bathy-, batho-	deep, depth	Greek	βαθύς (bathús, bathýs)	batholith, bathymetry, bathyscaphe, bathysphere
be-, beat-	bless	Latin	beare, beatus	beatification
bell-, belli-	war	Latin	bellum, belli	antebellum, bellicose, belligerent, rebellion
ben-	good, well	Latin	bene (adverb)	beneficence, benefit, benevolent, benign, benignant, benignity
bi-, bin-, bis-	two	Latin	bis, "twice"; bini, "in twos"	bicycle, biennial, bifocal, bigamy, binary, binoculars, biscotti
bib-	drink	Latin	bibere, bibitus	bib, beer, beverage, imbibe
bibl-	book	Greek	βιβλίον (biblíon) "book"	bible, bibliography
bio-, bi-	life	Greek	βίος (bíos) "life"	biodiversity, biography, biohazard, biology, biome, biometric, biosphere
blenn-, blenno-, blennor-	slime	Greek	βλέννος (blennos)	blennadenitis, blennophobia, blennosperma, blennorrhagia
blast-, blasto-	germ, embryo, bud, cell with nucleus	Greek	βλασταίνω (blastainō), "I put forth shoots"	blastula, fibroblast, osteoblast, sideroblast, blastocardia, blastochyle
bon-	good	Latin	bonus	bonify, bonitary
bore-	north	Latin from Greek	borealis "northern" from Βορέας (Boreas) "the north wind"	borealis
botan-	plant	Greek	βοτάνη, βότανον (botanē, botanon)	botanic, botanist, botanology, botany
bov-, bu-	cow, ox	Latin	bos (genitive bovis) "ox, cow"	beef, boor, bovine, bucinator muscle
brachi-, brachio-	arm	Latin	bracchium	brachiferous, brachial artery, brachiocubital
brachi-, brachio-, brachion-, brachioni-, brachior-	arm	Greek	βραχίων (brakhíōn)	brachialgia, brachionerysipelas, brachionigraph, brachiorrhachidian, brachiosaurus
brachy-	short	Greek	βραχύς (brakhús, brakhýs)	brachycephaly, brachydactyly
brady-, bradys-	slow	Greek	βραδύς (bradús, bradýs)	bradycardia, bradysuria
branchi-	gill	Greek	βράγχιον (brágkhion, bránkhion)	branchiopod, nudibranch
brev-	brief, short (time)	Latin	brevis, breviare	abbreviate, brevextensor, brevicaudate, brevity, brief
bromat-, bromato-, broma-, bromo-	food	Greek	βρῶμα (brōma)	bromatium, bromateccrisis, bromatherapy, bromatology, bromography
brom-	oats	Greek	βρόμος, βρόμη (brómos, brómē) "oats"	brome, Bromus, Bromus ramosus
brom-	stench	Greek	βρῶμος (brōmos) "stench, clangor"	bromate, bromide, bromine
bronch-	windpipe	Greek	βρόγχος (brógkhos, brónkhos)	bronchiole, bronchitis, bronchus
bront-, bronto-	thunder	Greek	βροντή (brontē)	Brontosaurus, brontology, brontophobia
bucc-	cheek, mouth, cavity	Latin	bucca	buccal, buccilingual, buccolingual
bulb-	bulbous	Latin	bulbus	bulbiform, bulbiparous, bulboartrial, bulborrhexis, bulbous, bulbule
bull-	bubble, flask	Latin	bullire, bulla	bullectomy, bulliferous, ebullient, ebullism
burs-	pouch, purse	Latin	bursa	bursa, bursalogy, bursar, bursary, bursectomy, bursiform, de