Verified answer

demi-cannon

demi-culverin

demi-hunter

demi-island

demi-glaze

etc.

EDIT: The majority of the words included in the post below mine are actually French, which would actually defeat the purpose of the English exercise.

demi-

demi-cannon

demi-culverin

demi-détourné

demi-détournés

demi-detourne

demi-detournes

demi-glaze

demi-hunter

demi-island

demi-monde

demi-pension

demi-plié

demi-pliés

demi-plie

demi-plies

You can check on dictionary.com

It helps :]

i can give you one... demigod