Strong's G5287 — ὑπόστασις (noun)
hupostasis (hoop-os'-tas-is) n.
1. a setting under (support)
2. (figuratively) concretely, essence, or abstractly, assurance (objectively or subjectively)
[from a compound of G5259 and G2476]
KJV: confidence, confident, person, substance 
Root(s): G5259, G2476 
Hebrew root: ἵστημι
Occurrences: 5