古英語のta, toeから。原語ゲルマン語の*taihwo, toesから省略され、PIE *deik, to point, to showに由来する。
To stode hii I-armed fram heued to te ton. [Robert of Gloucester, "Chronicle," c. 1300]The old plural survived regionally into Middle English as tan, ton. To be on (one's) toes "alert, eager" is recorded from 1921. To step on (someone's) toes in the figurative sense "give offense" is from late 14c. Toe-hold "support for the toe of a boot in climbing" is from 1880.
The chief mate ... marked a line on the deck, brought the two boys up to it, making them "toe the mark." [R.H. Dana, "Two Years Before the Mast," 1840]Related: Toed; toeing.