means a tool with jaws or a socket for gripping and turning nuts, bolts, and pipes — or, as a verb, to twist or pull something violently, or to feel a sudden sharp pang of grief.

from From Old English 'wrenc,' meaning a twist, trick, or deceit — a sense of cunning crookedness. It belongs to a Germanic family clustered around twisting and wringing (a likely cousin of 'wring' and German 'renken,' to bend or wrench). The mechanical tool kept the old core idea: something that turns by twisting. The emotional sense — a heart 'wrenched' by loss — is the same twist applied to the soul.