Half-Dwarves aren't half as confusing as half-halfling, which are called quarterlings, although they're actually more like three-quarterslings because they're taller.
There's so many others, too, like the Dwarf-Troll mixes, the Dolls.
The Dwarf-Orc mixes, the Dorcs.
The Elf-Orc mix, the Elc.
The Troll-Human blend, the Truman.
The Pixie-Orc blend, the Porc.
The Dwarf-Dragon hybrid, the Dwagon.
The Giant-Ent hybrid, the Gent.