Webster's Revised Unabridged Dictionary · 1913

Avocado

Avocado ({not transcribed}) , noun

[Corrupted from the Mexican ahuacatl: compare Sp. aguacate, French aguacaté, avocat, German avogadobaum.]

The pulpy fruit of Persea gratissima, a tree of tropical America. It is about the size and shape of a large pear; -- called also avocado pear, alligator pear, midshipman's butter.