"PIE" . "92231" . _:B9e28c83d82ef80d0ff6396e2aa33e3ba . "*keh₂i‑lo‑" . "Etymology for: caelum (la0191)" . "*keh₂i‑lo‑" . . _:B9e28c83d82ef80d0ff6396e2aa33e3ba "*keh₂i‑lo‑" .