Sesqui-alterate

in geometry and arithmetic, is a ratio between two lines, two numbers, or the like, where one of them contains the other once, with the addition of a half. Thus 6 and g are in a sesqui-alterate ratio; since-9 contains 6 once, and 3, which is half of 6, over; and 20 and 30 are in the same; ag 30 contains 20, and half 20 or 10,