From hupodeiknumi; an exhibit for imitation or warning (figuratively, specimen, adumbration) -- en-(ex-)ample, pattern.
see GREEK hupodeiknumi
a. a sign suggestive of anything, delineation of a thing, representation, figure, copy: joined with σκιά Hebrews 8:5; with a genitive of the thing represented, Hebrews 9:23.
b. an example: for imitation, διδόναι τίνι, John 13:15; καταλελοιπεναι, 2 Macc. 6:28; with a genitive of the thing to be imitated, James 5:10 (Sir. 44:16; 2 Macc. 6:31); for warning: with a genitive of the thing to be shunned, τῆς ἀπειθείας, Hebrews 4:11; with a genitive of the person to be warned, 2 Peter 2:6 (τούς Ρ᾽ομαιους ... εἰς ὑπόδειγμα τῶν ἄλλων ἐθνῶν καταφλέξειν τήν ἱεράν πόλιν, Josephus, b. j. 2, 16, 4).