Gikun word derived by applying Chinese-derived spelling 裸体 (“naked body”), a term which decomposes into 裸 (“naked”) + 体 (“body”), to native Japanese word はだか (hadaka, “naked”).
裸体 (はだか)[1] (hadaka) → 裸 (はだか)(hadaka), 裸(ら)体(たい) (ratai)