Affixed ᬳᬶᬩᭂᬃ (iber, “fly(ing)”) + ᬫ- (ma-, “active verb-forming prefix”) (compare Javanese ꦩꦶꦧꦼꦂ (miber, “to fly”), Old Javanese mibĕr, umibĕr (“to fly, fly up, fly away, fly about”)).
ᬫᬶᬩᭂᬃ (miber)