転石苔むさず。

転石苔むさず。

A rolling stone gathers no moss.

転石(てんせき)苔(こけ)むさず。

Tenseki kokemusazu.

転石 (てんせき)

rolling stone

苔生す (こけむす)

to become covered in moss; to be moss-covered; to have moss growing on itself; to become aged (e.g. building, stone)

Readings: テン、ころ.がる、ころ.げる、ころ.がす、ころ.ぶ、まろ.ぶ、うたた、うつ.る、くる.めく

Meanings: revolve, turn around, change

Readings: セキ、シャク、コク、いし

Meaning: stone

Readings: タイ、こけ、こけら

Meanings: moss, lichen