一いち命めいを取とり留とめる

Meanings

1

expression, ichidan verb

escape death; be saved from death

Used when someone survives a life-threatening situation, such as a serious illness or accident. Often implies a narrow escape.

おも

い

病びょう

気き

に

かかっ

た

が

、

幸さいわ

い

一いち

命めい

を

取と

り

留と

め

た

。

He contracted a serious illness, but fortunately his life was saved.

命いのち拾びろい
命拾い is a noun meaning 'narrow escape from death' or 'having one's life saved', often used in the phrase 命拾いをする. 一命を取り留める is a verb phrase focusing on the act of surviving.
九きゅう死しに一いっ生しょうを得える
九死に一生を得る is a more dramatic, literary expression meaning 'to have a narrow escape from death'. 一命を取り留める is more neutral and commonly used in everyday contexts.

一命 (いちめい, 'one's life') + を + 取り留める (とりとめる, 'to hold onto, to keep'). Literally 'to hold onto one's life'.