The noun χιτων (chiton) describes a garment, specifically an inner or undergarment, worn on the skin, usually covered by an ιματιον (imation), or outer garment.

Our noun χιτων (chiton) is not native to Greek but was imported from the Semitic language basin — the Hebrew word for tunic is כתנת (kuttonet) — probably together with the alphabet and a slew of abstract terms that helped form the Greek mind.

The noun χιτων (chiton) occurs 11 times in the New Testament, see full concordance, and has no derivations.