cel-i = to aim, have as purpose or goal.
celeri-o = celery.
cend-o = cent (coin).
cent = hundred (142).
centigram-o = centigram (284).
centilitr-o = centiliter (284).
centimetr-o = centimeter (284).
centr-o = center.
cerb-o = brain.
cert-a = certain, sure.
cerv-o = stag, deer.
ceter-a = remaining.
ci = (pronoun), thou (40).
cidoni-o = quince.
cifer-o = cipher.
cigar-o = cigar.
cigared-o = cigarette.
cign-o = swan.
cilindr-o = cylinder.
cinam-o = cinnamon.
cindr-o = ashes.
cir-o = blacking (for shoes).
cirkonstanc-o = circumstance.
cirkuler-o = circular (letter).
Cirus-o = Cyrus.
cit-i = to quote.
citron-o = lemon.
civiliz-i = to civilize.
col-o = inch (measure).