IPA: //səbˈtræhɛnd//
KK: /sʌbtrəˌhɛnd/
A number that is taken away from another number in a subtraction operation.
In the equation 10 - 4 = 6, the number 4 is the subtrahend.
Subtrahend → It is formed from "sub-" (meaning under or below) and "trahere" (meaning to draw or pull). The word refers to a number that is to be subtracted from another number, effectively drawing it down or away from the total.
Think of 'drawing down' ('trahere') a number 'under' ('sub-') another number — that's why a subtrahend is the number being taken away.
No commonly confused words.