Thrasos

In Greek mythology, Thrasos (Greek Θράσος n.) is the personified concept of boldness.

Although the word θράσος itself could be used both in the positive ("courage") and the negative ("over-boldness, insolence") senses,^[1] in the only context where Thrasos appears as a personification (a daemon), it is definitely a malicious being, mentioned together with Hybris and Atë and opposed to Dike.^[2][3]

References

1. A Greek-English Lexicon compiled by H. G. Liddel and R. Scott. 10th edition with a revised supplement. – Clarendon Press, Oxford, 1996. - p. 804, under θράσος
2. Aeschylus, Agamemnon 763 ff
3. Theoi Project - Thrasos