I've been wondering for quite a long time what the function of 込む was in compound verbs as they often change the meaning of the original word a lot and do not have the same function every time when used.
Some words I encountered recently during my immersion:
送り込む, 話し込む, 落ち込む, 寝込む, 取り込む
I was frustrated not understanding the logic behind its use , and instead having to memorize the compound words by heart. I found a great website which explained the concept of compound verbs with 込む, giving super interesting examples for every function it may have.
https://www.tofugu.com/japanese/komu-compound-verbs/
Thought I would share it here if it can help anyone in the future:)
Learning this small concept this morning made me remember why I started learning Japanese, it's such a beautiful language and the use of words can be so fascinating !
by mathiasvtmn