Strong's #5287: hupostasis (pronounced hoop-os'-tas-is)

from a compound of 5259 and 2476; a setting under (support), i.e. (figuratively) concretely, essence, or abstractly, assurance (objectively or subjectively):--confidence, confident, person, substance.

Thayer's Greek Lexicon:

̔́

hupostasis

1) a setting or placing under

1a) thing put under, substructure, foundation

2) that which has foundation, is firm

2a) that which has actual existence

2a1) a substance, real being

2b) the substantial quality, nature, of a person or thing

2c) the steadfastness of mind, firmness, courage, resolution

2c1) confidence, firm trust, assurance

Part of Speech: noun feminine

Relation: from a compound of G5259 and G2476

Citing in TDNT: 8:572, 1237

Usage:

This word is used 5 times:

 

2 Corinthians 9:4: "ashamed in this same confident boasting."
2 Corinthians 11:17: "foolishly, in this confidence of boasting."
Hebrews 1:3: "and the express image of his person, and upholding all things by the"
Hebrews 3:14: "if we hold the beginning of our confidence steadfast unto the end;"
Hebrews 11:1: "Now faith is the substance of things hoped for, the evidence of things not"