nm corrosion
cyrydu vb to corrode
cysawd (-odau) nm system; constellation
cysefin adj original, primordial
cysegr (-au, -oedd) nm sanctuary
cysegredig adj consecrated, sacred
cysegredigrwydd nm sacredness
cysegriad (-au) nm consecration
cysegr-ladrad nm sacrilege
cysegr-lân adj holy
cysegru vb to consecrate, to dedicate, to devote
cyseinedd nm alliteration
cysetlyd adj fastidious
cysgadrwydd nm sleepiness, drowsiness
cysgadur (-iaid) nm sleeper
cysglyd adj sleepy
cysgod (-au, -ion) nm shade, shadow; shelter; type
cysgodi vb to shadow, to shade; to shelter
cysgodol adj shady, sheltered
cysgu vb to sleep
cysgwr (-wyr) nm sleeper
cysidro vb to consider
cysodi vb to set type, to compose
cysodydd (-ion, -wyr) nm compositor
cyson adj consistent, constant
cysondeb nm consistency; regularity
cysoni vb to harmonize; to reconcile
cysonwr (-wyr), cysonydd (-ion) nm harmonist
cystadleuaeth (-laethau) nf competition
cystadleuol adj competitive
cystadleuwr (-wyr), cystadleuydd nm competitor
cystadlu vb to compete; to compare
cystal adj as good, so good ▶ adv as well, so well
cystrawen (-nau) nf construction, syntax
cystudd (-iau) nm affliction; illness
cystuddiedig adj afflicted, contrite
cystuddio vb to afflict, to trouble
cystuddiol adj afflicted
cystuddiwr (-wyr) nm oppressor
cystwyo vb to tell off, to chastise
cysur (-on) nm comfort, consolation
cysuro vb to comfort, to console
cysurus adj comfortable
cysurwr (-wyr) nm comforter
cyswllt (-ylltiadau) nm joint, junction
cysylltiad (-au) nm conjunction; joining, connexion; cysylltiadau cyhoeddus public relations
cysylltiedig adj connected
cysylltiol adj connecting; connected
cysylltnod (-au) nm ligature, hyphen
cysylltu vb to join, to connect
cysylltydd (-ion) nm connector, contact
cysyniad (-au) nm concept
cytbell adj equidistant
cytbwys adj of equal weight
cytbwysedd nm balance
cytew nm batter
cytgan (-au) nmf chorus
cytgord nm concord
cytir (-oedd) nm common
cytras adj allied, related; cognate
cytsain (-seiniaid) nf consonant
cytûn adj agreed, of one accord, unanimous
cytundeb (-au) nm agreement, consent
cytuno vb to agree, to consent
cythlwng nm fasting, fast, hunger
cythraul (-euliaid) nm devil, demon
cythreuldeb nm devilment
cythreulig adj devilish, fiendish
cythru vb to snatch, to rush
cythruddo vb to annoy, to provoke, to irritate
cythrwfl nm uproar, tumult
cythryblu vb to trouble, to agitate
cythryblus adj troubled, agitated
cyw (-ion) nm young bird, chick, chicken; baby
cywain
