[jaytaylor]

I didn't know the word internecine, it's actually really useful and relevant in many situations, thank you!

> internecine, adj.:

> destructive to both sides in a conflict.

[jodrellblank]

I find myself googling "etymology {word}" a lot recently; here inter is between like in intercontinental, and necine is death like in necrosis.

And inter is apparently the origin of intel, which is topical, and suggests Intelnecine, adj: destructive to all factions within Intel, or any company with a destructive amount of in-fighting.

https://www.etymonline.com/word/internecine