Haha - so weird that the French names are bad translations of the English!
"horny" means having horns or hornlike projections (as in "horned shell").
"smart" means sharp (as in "sharp shell").
"cuty" has no meaning in English, but is perhaps related to the word "cut" (as in "cutting shell").
Or it could be related to "cutty," which means short (as in "short shell").
I think Ulykus's explanation of splinter is good (as in "splintering shell"). :)
"horny" means having horns or hornlike projections (as in "horned shell").
"smart" means sharp (as in "sharp shell").
"cuty" has no meaning in English, but is perhaps related to the word "cut" (as in "cutting shell").
Or it could be related to "cutty," which means short (as in "short shell").
I think Ulykus's explanation of splinter is good (as in "splintering shell"). :)