手榴弾

Etymology 1
Probably a compound of.

First cited with this reading to a text from 1922.

It remains unclear whether this term was coined in Japanese originally, and then borrowed into Chinese and Korean, or if it was coined in Chinese originally, and borrowed into Japanese and Korean.

Noun

 * 1)  a hand grenade

Usage notes
Some sources list shuryūdan as the main reading, while others list te ryūdan as the main reading, and others list both without preference.

Etymology 2
Compound of, changing the reading of the first character  to replace the Chinese-derived shu with the Japanese native reading of te.

First cited with this reading to a text from 1928.

Noun

 * 1)  a hand grenade

Usage notes
Some sources list shuryūdan as the main reading, while others list te ryūdan as the main reading, and others list both without preference.