What does Krishna mean?
From Sanskrit krishna (कृष्ण), literally 'black, dark, dark-blue'. It is the name of the eighth avatar of Vishnu, the beloved deity of the Bhagavad Gita and Mahabharata, so the name is first and foremost a divine name.
What does Samar mean?
From the Sanskrit समर (samara), 'war, battle, conflict'. A genuine classical word (as in the treatise Samarangana-Sutradhara). Note: an identical-looking Arabic name Samar ('evening conversation') exists and is unrelated; this entry reflects the Sanskrit source.