Catholic (term) Catholic (term) The word catholic (with lowercase "c"; derived via Late Latin "catholicus", from the Greek adjective ("katholikos"), meaning "universal") comes from the Greek phrase ("katholou"), meaning "on the whole", "according to the whole" or "in general", and is a combination of the Greek words meaning "about" and meaning "whole". The term Catholic (usually written with uppercase "C" in English) was first used to describe the Christian Church in the early 2nd century to emphasize its universal scope. In the context of Christian ecclesiology, it has a rich history and several usages. The word in English can mean either "of
English words of Greek origin "bacterium" < βακτήριον 'stick (diminutive)' is a kind of microorganism rather than a small stick or staff. This also applies to combining forms used in neologisms: "-cyte" or "cyto-" < κύτος 'container' means biological cells, not arbitrary containers; "-oma" < -ωμα, a generic morpheme forming deverbal nouns such as "diploma" 'a folded thing' and "glaucoma" 'greyness', comes to have the very narrow meaning of 'tumor' or 'swelling', on the model of words like "carcinoma" < καρκίνωμα. For example, "melanoma" does not come from Greek μελάνωμα 'blackness', but rather from the modern combining forms "melano-" 'dark (in biology)' + "-oma" 'tumor'.