boma

Boma originally means 'enclosure, fortification' in Swahili — a fence of thorns or branches built to protect livestock from predators at night.

During the colonial era, European administrators built fortified government buildings and called them 'bomas' — borrowing the local word for enclosed, protected spaces. The colonial office was, linguistically, a cattle pen.

After independence, the word stuck. Government buildings across East Africa are still called bomas. The word now means 'government office, official building' in everyday Swahili.

The semantic journey — from thorn fence to government building — captures the entire colonial experience in a single word: outsiders moved into the enclosure and renamed it authority.