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But you're closest! It is a noun btw.

stop givin' ma nuts out...

Possession or possessiveness...:)

Nope, but on the right path.

Ephemerality or Worship?

Your edited answer was closest yet, but it is a noun

Do you mean the value and materialism?

What a sneaky strategy to cajole me into "closest guess" ! This only beings me further away unless I have a lucky shot!