FROM STRONG’S GREEK DICTIONARY (1890)

Strong’s Greek Dictionary (1890) — public domain, printed whole.

hupostasis ὑπόστασις — 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.

see GREEK for 5259

see GREEK for 2476