Arthas is of Germanic origin, meaning 'bear'. It is composed of two elements: 'ari' meaning 'bear', and 'thiasu' meaning 'godly'. This name was popularized by the character Arthas Menethil from the video game series 'Warcraft', but its roots lie in ancient Germanic culture.
"The name Arthas experienced a notable surge in popularity between 2016 and 2017, with the number of annual births more than doubling from 6 to 13. However, it has since stabilized around an average of 6-9 births per year."