Con-flu-ence, cymmer, cydlif; cydffrydiad
Con-flu-ent, cydlifol, aberol, cydlifeiriol
Con-fu-sion, cymmysgedd; terfysg
Con-gre-gate, cynnull, crynhoi; ymdyru
Con-jec-ture, amcan, tyb: tybio, amcanu
Con-ju-gal, priodasol; cydieuog
Con-ju-gate, cyfieuair: cyfieuo; treiglo
Con-junc-tion, cyssylltiad; cyssylltair
Con-nec-tion, cyssylltiad, cydiad; perthynas
Con-quer-or, gorchfygwr, buddugoliaethwr