A primitive root; to be bold or obstinate: d-fierce.
Englishman's Concordance
1) to be strong, be fierce (meaning dubious) 1a) (Niphal) barbarous (participle) Part of Speech: verb A Related Word by BDB/Strong’s Number: a primitive root Same Word by TWOT Number: 880
Brown-Driver-Briggs
[יָעַז] verb only
Niph`alParticiple as adjective (precise meaning dubious; Arabic is give a nod or sign, then command, whence Hebrew might have meaning nodding, making signs (not intelligibly speaking), so Hi — Che barbarous, De 'ungeberdig' — which context favours, or arrogant; Thes proposes durus, saevus, and compare עזז) — in phrase עַם נוֺעָזIsaiah 33:19a barbarous (?) people, of foreign invader.
Isaiah 33:19 HEB:אֶת־ עַ֥ם נוֹעָ֖ז לֹ֣א תִרְאֶ֑ה NAS: longer see a fierce people, KJV: Thou shalt not see a fierce people, INT: people A fierce will no see