What does Advik mean?
A modern Sanskrit-derived name generally glossed as 'unique, one of a kind', linked to the idea of advitiya ('without a second, incomparable'). The further association with advaita ('non-duality') is thematic rather than a direct etymology.
What does Shaurya mean?
From the Sanskrit शौर्य (śaurya), 'heroism, valour, martial prowess', derived from śūra ('hero, warrior'). A genuine classical abstract noun.