What in the world is 命がけで?

[HelixSundown]

I came across this sentence today;

"この世界は、命がけで
守る価値があるのか。。。？"

And I'm really tripping up on the "命がけで" bit. I just can't put it together. ga+ke+de? I actually googled that part of the sentence and the results popped up with it actually being some kind of coherent part of a sentence, used many times, so I'm assuming there's some kind of structure there that I'm just not aware of.

Any ideas?

[Psy]

I'll give it a shot:

命がけで = "risking one's own life." 命, as you likely know, means "life," and I believe the がけ comes from the verb 懸ける, meaning "to put (something important) on the line." Thus, 命がけ refers to "putting one's life on the line." When you add で it becomes "by putting one's life on the line." 命がけで守る is "to protect by way of putting one's life on the line." 価値があるのか is asking hypothetically "is there the value?" Put it all together and we get:

"この世界は、命がけで
守る価値があるのか。。。？"

Literally:
As for this world, does value to protect with one's life exist...?

Loosely:
Is this world valuable enough to risk one's own life protecting...?

Makes sense to me, anyway. Hope that helps!

[HelixSundown]

Aha, yes! That makes more sense than what I was coming up with on my own. Good insight on the 命がけで, I was pretty much stumped. I was also utterly confused by the apparent presence of two "ga" particles.