{ } n. [ Etymol. uncertain. ] (Arch.) In root construction, a horizontal member supported on the principals and supporting the common rafters. [ 1913 Webster ]
[もや;むや(母屋;身屋)(ok), moya ; muya ( omoya ; mi ya )(ok)](n) (1) (See 母屋桁) purlin (structural beam in a roof); purline; (2) (See 母屋・おもや・1) main building (of a manor); (3) (See 寝殿造) central room (in traditional palatial-style architecture)[Add to Longdo]