From Old English loppestre, a folk-etymological corruption of Latin locusta, which meant both 'lobster' and 'locust' — the Romans used the same word for both creatures.
A large marine crustacean with a cylindrical body, stalked eyes, and large pincers, valued as a food delicacy.
From Old English loppestre, a corruption of Latin locusta 'lobster, locust.' The Latin word meant both the marine crustacean and the terrestrial insect, and the Romans apparently saw a physical resemblance between the two. The Old English form shows folk-etymological reshaping, possibly influenced by Old English loppe '