Comments:PKE 177, Martin 227 (Kor.-Jpn.). The accent variants in Jpn. are due to a confusion of PA *sắp`í 'stick' and *sī̀pe 'swamp vegetation' q. v. As opposed to *sèp`u 'long twig, rod' (q. v.) this root must have denoted twigs and branches used as firewood and also suitable for making fences (cf. Mong. sibeɣe 'fence' and OJ siba-gakji 'twig fence').