征せいする

せ

い

す

る

Meanings

1

suru verb (special), transitive verb

Formal, somewhat literary verb for conquering territories, peoples, or overcoming great obstacles. Often used in historical or elevated contexts.

彼かれ

は

数かず

々かず

の

困こん

難なん

を

征せい

し

て

成せい

功こう

を

収おさ

め

た

。

He overcame numerous difficulties and achieved success.

征せい服ふくする
征服する is the common, everyday word for 'conquer' or 'subjugate'. 征する is more formal and literary, often used in historical or rhetorical contexts.
克こく服ふくする
克服する means 'overcome' in the sense of surmounting personal difficulties or weaknesses. 征する can also mean 'overcome', but with a more grandiose or military nuance.

Derived from the kanji 征 (military expedition, conquer) combined with the verbalizing suffix する. The reading せい is the on'yomi of 征.