まぐさ

noun

lintel (without sliding door grooves)

Architectural term for a lintel that lacks the grooves needed for a sliding door; contrasted with 蹴放し (けはなし), which has grooves.

See also: 蹴放し

• この古ふるい家いえのまぐさには、引ひき戸どの溝みぞがありません。

  The lintel of this old house has no grooves for a sliding door.