Proto-Sino-Tibetan: *pher
Meaning: flat
Chinese: 片 *phēns board, flat surface (cf. also 篇 *phen writing slip, 扁 *b_ē̆nʔ table with inscription).
Kachin: pjan1 to grow, unfold and flatten, as a leaf.
Comments: The root seems to be distinct from *pērH, although they are very close and mergers were possible.
