adjective/kaˈʝoso/
calloused; callosal
Etymology tree Latin callum Proto-Indo-European *h₃ed- Proto-Indo-European *-os Proto-Indo-European *h₃édosder.? Proto-Italic *-ŏ̄dsos? Old Latin -ōssus Latin -ōsus Latin callōsusslbor. Spanish calloso Semi-learned borrowing from Latin callōsus. By surface analysis, callo + -oso.