| \tan-TIV-ee\ | adverb 1. at full gallop: to ride tantivy. adjective 1. swift; rapid. | | Quotes | As soon as he caught Bud's eye, he kicked it up another gear, to a tantivy. He was going to cut Bud off before he could reach Sendero. -- Neal Stephenson, The Diamond Age, 1995 | | Origin | | Tantivy entered English in the 1600s and is of unknown origin. | |