From 'aman, probably in the sense of training; skilled, i.e. An architect (like 'aman) -- one brought up.
see HEBREW 'aman
see HEBREW 'aman
H525. amon
II. אָמוֺן noun masculine artificer, architect, master-workman, as firm and sure in his workman-ship: אָמוֺן אֶצְלוֺ וָאֶהְיֶה I was at his side architect, master-workman (ᵑ9 ᵑ6 ᵐ5 Ges Ew De MV RV, > foster-son AE Ki AV) Proverbs 8:30; הָֽאָמוֺן יֶתֶר rest of the master-workmen Jeremiah 52:15 (Hi Gf De RVm, but rest of the multitude Ges MV RV et al., אמון = המון) — I. אָמוֺן see above.