This is an archaic counting word.
laksâ
ten thousand
laksâ
10,000
Unrelated to the above, there is also a sweet potato that’s called laksá.
MGA KAHULUGAN SA TAGALOG
laksá: isang uri ng kamote
laksâ: bilang na sampung libo, sampunlibo
laksâ-laksâ: sampu-sampung libo
laksâ: uri ng pansit
laksâ: putaheng gulay, karaniwang may kalabasa at may gata (laksâ-laksâ)