OSHANIN:потребность, нужда, необходимость; необходимо; необходимый, нужный; нуждаться; потребно; требуется
Комментарии:The word was originally written as 須 q.v., so it is possible that we should reconstruct *so here. The character actually has other attested readings: *norʔ / *nōrʔ (MC ńwén / nwấn, Pek. ruǎn / nuǎn) 'weak, supple' - by phonetic and graphic confusion with 耎 q. v. A not quite clear case.
