In English, “bull” appears across other Germanic languages (e.g., German Bulle) and in some non‑Germanic languages (e.g., Latvian bullis). All derive from the Proto‑Germanic root *bulô, which is cognate with *balluz “ball”; both trace back to the Proto‑Indo‑European bʰel‑ “to blow, swell.” Where does this connection come from? Put simply and politely: what you’d see between a bull’s legs. Read more here: https://mapologies.com/animals/