'post-cecal' originates from Latin, specifically the prefix 'post-' meaning 'after', combined with 'cecal' derived from New Latin 'caecum' meaning 'blind (referring to the blind end of the intestine)'.

'post-' (Latin) + 'cecal' (from Latin 'caecum' → New Latin 'cecum' → adjective 'cecal') were combined in modern medical English to form 'post-cecal' (used to describe anatomical position relative to the cecum).

Initially the components literally meant 'after' + 'blind (gut)', and over time the compound came to be used specifically to mean 'located behind the cecum' in anatomical and clinical contexts.