Cyrhaeddiad, n. a reaching

Cyrhaeddol, a. within reach

Cyrhaeddu, v. to attain, to reach

Cyrhaeddyd, v. to reach, to attain

Cyriad, n. a skirting round

Cyrid, n. carnal copulation

Cyrio, v. to skirt, to rim

Cyriogi, v. to set a border

Cyrnad, n. a blowing a horn

Cyrnaid, n. a prance, a bound

Cyrneidio, v. to prance

Cyrnen, n. a cone; a stack

Cyrnenaidd, a. conical

Cyrnenu, v. to pile up

Cyrniad, n. a projecting as a horn; to pile up, to stack

Cyrnig, a. corneous; horned

Cyrnio, v. to pile, to stack

Cyrniog, a. cornigerous, horned

Cyrniogyn, n. a piggin

Cyryglwr, n. a coracle-man

Cys, a prefix denoting mutuality of effect or action, of the same force
as CYD and CYF

Cysail, n. constituent part

Cysain, n. consonancy

Cysawd, n. an affix, a suffix

Cysawdd, n. a compound

Cysdadl, a. disputable; equal

Cysdadlaeth, n. competition

Cysdadliad, mutually disputing

Cysdadlu, v. to vie; to debate

Cystadlwr, n. a competition

Cysdawd, n. a butting together

Cysdedlydd, n. a competitor

Cysdodi, v. to place in custody

Cysefin, a. primary, primitive

Cysefino, v. to originate

Cysefiniad, n. originality

Cysegr, n. a sanctuary

Cysegriad, n. consecration

Cysegredig, a. consecrated

Cysegrol, a. consecrate

Cysegr-ladrad, n. sacrilege

Cysegrlan, a. consecrate, sacred

Cysegru, v. to consecrate

Cysegrydd, n. a consecrator

Cyseiliad, n. constitution

Cyseiniad, n. a consonant

Cyseinio, v. to sound together

Cysellt, n. an opportunity

Cysgfa, n. numbness

Cysgiad, n. a sleeping

Cysgiadol, a. soporific, soniferous

Cysgiadur, n. a sleeper; a sluggard; a dormant animal

Cysgiadyr, n. an opiate

Cysglyd, a. sleepy, drowsy

Cysgod, n. a shadow, a shade; a shelter

Cysgodfa, n. a shady place

Cysgodi, v. to shadow; to shelter

Cysgodiad, n. a shadowing

Cysgodog, a. sheltering

Cysgodol, a. shadowy, sheltering

Cysgrwydd, n. sleepiness

Cysgu, v. to sleep; to benumb

Cysgwr, n. a sleeper

Cysgwal, n. a dormitory

Cysiad, n. somnolence

Cysni, n. drowsiness

Cysodi, v. to compose

Cysodiad, n. a composing

Cysodol, a. compositive

Cysodoldeb, n. compositiveness

Cysodwr, n. a composer

Cysodydd, n. a compositor

Cysodyr, n. a composing-stick

Cysoddi, v. to combine, to blend

Cysoddiad, n. a combining

Cysoddol, a. combining

Cyson, a. concordant, harmonious; constant

Cysondeb, n. concordanc