Given names often turned into family names when people were identified by their father's name. For example, the first name Ahrend developed into the family name Ahrends by adding a genitive s-ending, as in Ahrend's son. Examples: Ahrends, Burkhard, Wulff, Friedrich, Benz.
OK the definition you have used for crouching associates it with stooping (which on Wikipedia redirects to bowing. Squatting essentially involves bending at the knees and hips. If there is any bending at the waist (and maybe lowering of the head) then that is considered stooping.
Whether you want to call it an Olympic squat, high bar squat, close stance squat, ATG squat or any other name, what matters is that you squat with a nearly vertical torso, stance that resembles your feet during the catch of a clean or snatch and you are squatting deep and explosively.