Dictionary Definition:
ava-√kāś -kāśate, to be visible, be manifest ŚBr.: Caus. P. -kāśayati (fut. p. -kāśayiṣyat) to cause to look at ŚBr. KātyŚr.: Intens. p. -cā́kaśat shining AV. xiii, 4, 1
• seeing RV. AV. xiii, 2, 12 ( and vi, 80, 1)