magnolia-wood geta supports; geta with magnolia-wood supports
Refers to the wooden supports (teeth) of geta sandals made from magnolia wood, or to geta that use such supports. A traditional footwear term.
朴歯の下駄は、歩くと心地よい音がする。
Geta with magnolia-wood supports make a pleasant sound when you walk.
この下駄は朴歯を使っているので、軽くて丈
These geta use magnolia-wood supports, so they are light and durable.
Compound of 朴 (magnolia wood) and 歯 (tooth, here referring to the supports of geta). The exact historical derivation is uncertain, but the term is conventionally associated with geta made from magnolia wood.