A firm, hard spot, as a hard road, hardened soil, hard sand on the beach, etc. (see the following básil).
básil
Hiligaynon
Any hardened or dry matter sticking to, or wedged in between, other objects; to harden, thicken, incrust. Nagbásil ang lúnang sa íya báyò. The mud hardened on his jacket. (see bágtik, tíg-a, tígdas, malá).