English
Gunter's line
From Gunter + -'s + line, from the surname of the English clergyman, geometer, and mathematician Edmund Gunter (1581–1628), the inventor of the Gunter’s scale.
Today it means
noun A logarithmic line on a Gunter's scale, which is used to perform the multiplication and division of numbers mechanically with only dividers.
Language periods are conventional ranges, not dates for this word.
Etymograph / Gunter's line