mid-14c., from Old French hiene, from Latin hyaena, from Greek hyaina "swine" (fem.), from hys "pig" + fem. suffix -aina. So called for its bristles. Applied to cruel, treacherous, and greedy persons since at least 1670s. Adjectival forms that have been attempted in English include hyenaish, hyenaesque, hyenic, hyenine.
例文
1. African hyena noted for its distinctive howl.
アフリカハイエナは、その特別な遠吠えで知られている。
2.The savanna is also the home of meat-eaters-the lion,leopard,and hyena who feed on the grasseaters.