In Sanskrit, the term for 'narcissist' is "आत्मक्रीडः" (pronounced as "ātmakrīḍaḥ"). This term refers to someone who is excessively self-centered, self-absorbed, and preoccupied with themselves. It can be used to describe individuals with narcissistic traits or tendencies. However, it's worth mentioning that modern psychological concepts like Narcissistic Personality Disorder (NPD) may not have direct equivalents in ancient languages like Sanskrit, as these concepts have evolved within the context of modern psychology and psychiatry.