(Greek: ; beginning, first of anything; first letter of the Greek alphabet; used in physics and chemistry to designate a variety of series or values)

(Greek: cave, cavern; in medicine, of or pertaining to a [bodily] cavity or sinus; a term in anatomical nomenclature, especially to designate a cavity or chamber within a bone)

(Latin: oculus used as a reference to "eye" to designate something that looks like or is suggestive of a person's organ of sight including potato "eyes")

(Greek: after, behind, beyond; changed in form, altered; higher [used to designate a higher degree of a branch of science])

(Latin: oak; used to designate any of a variety of chemical substances derived from oak bark or acorns)