armistice

From Late Latin armistitium, a combination of Latin arma ("arms, weapons") and sistere ("to halt, stand still"), with the abstract-noun suffix -ium added. Sistere itself traces back to the Proto-Indo-European root *steh₂-, meaning "to stand up."

The facts given don't trace a shift in meaning over time — the word has carried the sense of halted weapons since its Late Latin formation.

It shares its root with French armistice, Italian armistizio, Portuguese armistício, and Spanish armisticio, all built from the same Latin components.