Standing-person radical on the left — side form of
人, two strokes preserving the legs of the original walking figure. Carries the meaning of
仿: imitating, copying, modelling-after is something people do — a learner mimicking a teacher, a craftsman copying a master's piece. Sits with
信 trust,
体 body,
偷 steal,
依 rely-on — the human-action family.