西せい漸ぜん

noun, noun or participle which takes 'suru', intransitive verb

westward advance; westward movement

Refers to the gradual spread or movement of something (e.g., culture, influence, people) toward the west. Often used in historical or geopolitical contexts.

• 仏ぶっ教きょうの西せい漸ぜんはシルクロードを通つうじて進すすんだ。

  The westward advance of Buddhism proceeded along the Silk Road.

• この文ぶん化かは徐じょ々じょに西せい漸ぜんしていった。

  This culture gradually spread westward.