Rina is a feminine given name with multiple origins. It is also a feminine name in the Sanskrit language meaning "melted" or "dissolved", and is also a Hebrew name meaning "song; joy". The name Rina is also a Russian hypocoristic for "Ekaterina" and is a feminine given name of Japanese origins, where it was proportionately used the most in the twentieth century.
Sanskrit means "melted" or "dissolved."
The name Rina means "melted" or "dissolved" in Sanskrit, but the language is not what means "melted" or "dissolved." The system may have seen the repetition of the latter part of the first sentence and assumed that it was indeed correct without being able to see the context.