| Edition | As printed | Type | Chars | Location | vs. previous |
|---|
| 2nd ed. (1778–83) | ① CO-SECANT | article | 102 | vol. 3, p. 2274 | |
| 3rd ed. (1797) | ② CO-SECANT | article | 102 | vol. 5, p. 483 | |
| 7th ed. (1842) | ③ COSECANT | article | 87 | vol. 7, p. 382 | |
| 8th ed. (1853–60) | ④ COSECANT | article | 86 | vol. 7, p. 422 | |