The story
- Latin · derived fromminax“threatening”
- Late Latin · derived fromminacia“threat”
- English todayminaciously
From minacious + -ly, from Late Latin minacia (“threat”), from Latin minax (“threatening”).
Words from the same roots
Late Latinminacia all →
menaceminaciousminaciousness
Latinminax all →
menaceminaceousminaciousminaciousnessminacity
Etymology from Wiktionary, CC BY-SA 4.0.