Onion

Webster's Condensed Dictionary- A Condensed Dictionary of the English Language · 1909 · p. 406

un'yun, n. A biennial plant; bulbous root, used as an article of food. [F. oignon, L. unio, a kind of single onion, also, onene , unity, unus, one, q. v.; same as union.] Only. See under One.