Strong's G3153 — ματαιότης (noun)
mataiotes (mat-ai-ot'-ace) n.
1. inutility
2. (figuratively) transientness
3. (morally) depravity
[from G3152]
KJV: vanity 
Root(s): G3152 
Hebrew root: μάταιος
Occurrences: 3