cychwyniad (-au) nm start, beginning
cyd adj joint, united, common; fellow ▶ prefix together
cydadrodd vb to recite together
cydaid (-eidiau) nm bagful
cydbwysedd nm balance
cydbwyso vb to balance
cyd-destun (-au) nm context
cyd-drafodaeth nf negotiation
cyd-ddigwydd vb to coincide
cyd-ddigwyddiad nm coincidence
cydfod nm agreement, concord
cydfodolaeth nf coexistence
cydfyned vb to go with, to concur, to agree
cyd-fyw vb to cohabit
cydffurfio vb to conform
cydgordio vb to agree, to harmonize
cydgwmni (-ïau) nm consortium
cydiedig adj adjoined
cydio vb to join; to bite; to take hold
cydletywr (-wyr) nm roommate, flatmate, housemate
cydnabod vb to acknowledge ▶ nm acquaintance
cydnabyddiaeth nf acquaintance; recognition
cydnabyddus adj acquainted; familiar
cydnaws adj congenial
cydnerth adj well set
cydol nmf, adj whole
cydradd adj equal
cydraddoldeb nm equality
cyd-rhwng prep between
cydsyniad nm consent
cydsynio vb to consent
cydwastad adj level (with), even
cydweddog adj conjugal
cydweddu vb to accord, to agree
cydweithfa (-feydd) nf co-operative
cydweithio vb to cooperate
cydweithrediad nm co-operation
cydweithredol adj co-operative
cydweithredu vb to co-operate
cydweled vb to agree
cydwladol adj international
cyd-wladwr (-wyr) nm compatriot
cydwybod (-au) nf conscience
cydwybodol adj conscientious
cydwybodolrwydd nm conscientiousness
cydymaith (cymdeithion) nm companion
cydymdeimlad nm sympathy
cydymdeimlo vb to sympathize
cydymffurfiad nm conformity
cydymffurfio vb to conform
cydymgais nm competition, rivalry, joint effort
cydymgeisydd (-wyr) nm rival
cyddwysiad (-au) nm condensation
cyddwyso vb to condense
cyfadran (-nau) nf faculty (in college), period (in music)
cyfaddas adj fit, suitable, convenient
cyfaddasiad (-au) nm adaptation
cyfaddaster nm fitness, suitability
cyfaddasu vb to fit, to adapt
cyfaddawd (-odau) nm compromise
cyfaddawdu vb to compromise
cyfaddef vb to confess, to own, to admit
cyfaddefiad (-au) nm confession, admission
cyfaenad nm harmonious song ▶ adj harmonious
cyfagos adj near, adjacent, neighbouring
cyfaill (-eillion) nm friend
cyfair1 (-eiriau) nm acre
cyfair2, cyfer nm direction
cyfalaf nm capital
cyfalafiaeth nf capitalism
cyfalafol adj capitalistic
cyfalafwr (-wyr) nm capitalist
cyfamod (-au) nm covenant
cyfamodi vb to covenant
cyfamodol adj federal; covenanted
cyfamodwr (-wyr) nm covenanter
cyfamser nm meantime
cyfamserol adj timely; synchronous
cyfan adj, nm whole
cyfandir (-oedd) nm continent
cyfandirol adj continental
cyfanfor (-oedd) nm main sea, ocean
cyfanfyd nm whole world, universe
cyfangorff nm whole, bulk, mass
cyfan gwbl adj: yn gyfan gwbl altogether, completely
cyfanheddol adj habitable, inhabited
cyfanheddu vb to dwell, to inhabit
cyfannedd adj inhabited ▶ nf (-anheddau) inhabited place, habitation
cyfannol adj integrated, integral
cyfannu vb to make whole, to complete
cyfanrwydd nm wholeness, entirety
cyfansawdd adj composite, compound
cyfansoddi