The word 全身 is formed through the direct and literal combination of two individual characters: 全, meaning "whole" or "entire", and 身, meaning "body". Their meanings are fused in a straightforward, descriptive manner where the first element (全) modifies and specifies the second (身), resulting in the composite concept of "the whole body" or "entire body". It is a simple, semantic compound where the sum of the parts equals the intended meaning.