स एवोरस्यातिक्रान्तो विजयः ॥ कZ_१०.६.१५ ॥
sa evorasyātikrānto vijayaḥ
That same (cāpa-pakṣa array), when the centre (uras) advances beyond, is called «Vijaya» (victory).
Saṃjaya emphasizes a structurally winning configuration (bow + wings). Vijaya adds a forward centre to exploit or force a decision faster.