TIPTOE

I. noun Date: 14th century the position of being balanced on the balls of the feet and toes with the heels raised, II. adverb Date: 1592 on or as if on ~, III. adjective Date: 1593 standing or walking on or as if on ~, cautious , stealthy , IV. intransitive verb (~d; ~ing) Date: circa 1661 to stand or raise oneself on ~, to walk or proceed quietly or cautiously on or as if on ~