Onos - oh'noss - n. - A Greek concept of rational worry; represented by Homer's Odyssey in Athena, a Greek Goddess, and many Greek heroes in other traditional works, it is considered a positive attribute.
Romans considered "onos" a negative attribute, like Odysseus' intelligence, and it became transmuted into the less-positive "onus," or "burden."
Athena's onos was manifested in her fear of Poseidon's threat to Odysseus' homecoming.
A Japanese fusion jazz band. They recently (2004) celebrated their 25th anniversary and have over 20 albums, including several collaborations with jazz artists from across the world. One of their albums, Megalith, was released in an overseas version outside of Japan.