ungual Look up ungual at Dictionary.com
"pertaining to a nail or claw," 1834, from L. unguis "a claw, nail" (cognate with Gk. onyx, O.E. nęgel, O.N. nagl "nail;" see nail).
ungulate (adj.) Look up ungulate at Dictionary.com
"hoofed," 1802, from L.L. ungulatus "hoofed," from ungula "hoof, claw, talon," dim. (in form but not sense) of unguis "nail" (see ungual). Ungulata, the order of hoofed mammals, is recorded from 1839.