What does Ojas mean?
From the Sanskrit ओजस् (ojas), 'bodily strength, vigour, energy, vitality'. In Ayurveda and the Vedas it names the vital essence that sustains strength and immunity.
What does Raja mean?
From Sanskrit 'rajan' (nominative 'raja'), meaning 'king', ultimately from a Proto-Indo-European root meaning 'to rule, to straighten'. (Note: the identically-spelled Arabic 'Raja' is an unrelated feminine name meaning 'hope'.)