diverticulum
UK[ˌdaɪvəˈtɪkjʊləm]US[ˌdaɪvərˈtɪkjələm]
n
A small pouch or sac branching out from a hollow organ in the body, such as the intestine.
Morpheme Breakdown
di
vert
iculum
di
apart
vert
to turn
iculum
small thing/place
Etymology
The word diverticulum is a direct borrowing from Latin, where it literally meant "a small place to turn aside." It is constructed from the verb 'divertere' (to turn aside), which itself is composed of 'dis-' (apart) and 'vertere' (to turn), plus the diminutive suffix '-culum'. This formation perfectly captures the anatomical reality: a diverticulum is a small side-pouch or blind tube that turns away, or diverts, from the main passage of an organ like the colon. The term entered medical English in the 19th century, preserving its precise Latin morphology and logical descriptive meaning for a specific physiological structure.
Analysis
Structure: di (apart) + vert (to turn) + iculum (small thing/place)
di: Latin prefix; a variant of 'dis-', meaning 'apart' or 'in different directions'.
vert: Latin root; from 'vertere', meaning 'to turn'.
iculum: Latin suffix; a diminutive suffix forming nouns, indicating a small thing or place.
Examples
The colonoscopy revealed a small diverticulum in the sigmoid colon.
A diverticulum can sometimes become inflamed, a condition known as diverticulitis.
The congenital diverticulum near the esophagus required surgical attention.