yujjhati

to fight, make war. Rare in older literature our refs. only from the Mahāvaṃsa; e.g. 22, 82 (fut yujjhissāma, with instr.: Damiḷehi); 25, 23 (aor ayujjhi); 25, 58 (ppr. yujjhamāna); 33, 41 (aor. yujjhi) To which add Dhp-a.ii.154 (mallayuddhaṃ yujjhanto), Dhp-a.iii.259 (Ajātasattunā saddhiṃ yujjhanto)
pp yuddha -Caus. yodheti (q.v.).

cp. Vedic yudhyate, yudh, given in meaning “sampahāra” at Dhtp.415
■ Etymologically to Idg *ieudh to shake, fr. which in var. meanings Lat. jubeo to command, juba horse’s mane; Gr. ὑσμίνη battle Lith. jundù, jùdra whirlwind; cp. also Av. yaošti agility