فَماso no بُزِيَتwas bested مِنany (emphasizing negation) عُصبَةٍband عامِرِيَّةof ʿĀmir
فَما بُزِيَت مِن عُصبَةٍ عامِرِيَّة
شَهِدناwe were present لَهاfor it حَتّىuntil تَفُوزَit triumphs وَتَغلِباand prevails
شَهِدنا لَها حَتّى تَفُوزَ وَتَغلِبا
So no band of ʿĀmir was ever bested
that we stood by until it triumphed and prevailed.
Sol 6.1