=Bell-um=, old form duellum, _war_: bellicose, belli-ger-ent, re-bel, revel (Fr.).
=bĕnĕ=, _well_, =bŏnus=, _good_: bene-dic-tion, beni-son; bene-factor, bene-ficent, benefit (_facio_); bene-vol-ent (_vŏlo_); beni-gn, boon and bounty (Fr.).
=bis=, =bi=, _twice_; =bini=, _two by two_: bi-cycle, bi-ennial, bi-sect, bi-weekly, bis-cuit (_twice baked_), bin-ary, combine.
=brev-is=, _short_: brevity, brief (Fr.), breviary, ab-breviate.
=Caballus=, _a nag_: through Fr., caval-ier, cheval-ier, cavalry, chivalry.
=căd-o= (cĭd-), _I fall_; =căs-us=, _a fall_: cad-ence, c(h)a-nce, de-cad-ence, de-cay, de-cid-uous, in-cident, cas-e, casu-al, cas-cade.
=caed-o= (caes-), _I cut_; =in-cīd-o=, (in-cīs-) _I cut in_: de-cide, incisive, precise.
=camp-us=, _plain_, _field_: encamp, campaign, champion and champaign (Fr.).
=cand-=, _be white_, _glow_--=cand-idus=, _white_; =in-cend-o= (cens-), _kindle_: candor, candid, candidate, candle, in-candescent, incend-iary, incense.
=can-o= (cant-), =cant-o= (cantāt-), _I sing_: can-orous, cant-icle, canto, cant.
=căp-io=, (capt-), =ac-cip-io= (cept-), _take_, _receive_: capacity, capt-ive, caption, captious, re-cip-ient, de-ceive and re-ceipt (Fr.), re-cipe, ac-cept, precept, cap-able, sus-cept-ible, cape.
=căpŭt= (căpĭt-), _head_: cape (headland), capital, capitol, capit-ulate, captain, chapter (Fr. _chapitre_), catt-le and chattel (Fr.); pre-cipit-ate.
=căro= (carn-) _flesh_: carnal, in-carn-ate, carnat-ion; through Fr. and Ital.
=car-us=, _dear_; =cāritas=, _dearness_, _love_: charity, cherish (Fr. _cher_ = _cār-_).
=cast-us=, _pure_; =castīgo= (castigāt-), _punish_: castigate, chaste.
=caus-a=, _cause_; -cūs- in verbs: cause, causal, causation, ac-cuse, accusation.
=cav-us=, _hollow_: cave, cavern, cavity, con-cave, cage and cajolery (Fr.).
=ced-o= (cess-), _go_, _yield_, _leave off_: cede, accede, cease, cessation, proceed.
=cens-eo=, _I assess_, _judge_: census, censor, censure.
=cent-um= _hundred_: cent, century, centurion, centenary, centi-grade.
=cern-o= (crēt-), _I distinguish_, _decide_; =cert-us=, _fixed_: dis-cern, dis-cri-minate, discreet, con-cern, decree, se-crete, secret-ary, certain, certi-ficate.
=circ-um=, _around_; =circ-us=, _circle_: circle, circular, circuit (_ĭ-_), circum-spect.