GRAMMAR DETAIL

んがために

in order to

Expresses in an archaic, formal style a strong determination to accomplish an important purpose.

Examples

地域の文化を守らんがために、住民は記録を残した。

In order to preserve the local culture, the residents kept records.

真実を伝えんがために、彼は記録を書いた。

In order to convey the truth, he created a written record.

国を救わんがために、若者たちは立ち上がった。

In order to save the country, the young people rose up.

Structure: Attach んがために to a verb's irrealis stem to express an important intended purpose in an archaic, formal style.
Basic usage: 地域の文化を守らんがために、住民は記録を残した。 means that the residents kept records for the purpose of preserving local culture.

Shape of the irrealis stem
- 守る connects as 守らんがために, and 伝える as 伝えんがために. する becomes せんがために.
Purpose compared with ために
- 文化を守るために also states the purpose of preserving culture. 文化を守らんがために conveys the intention to fulfill that purpose in a more solemn register.