This rare kanji has no clear standalone meaning. Treat its meaning as uncertain.
浰 combines 氵 (water) with 利, which likely contributes the sound. The exact historical development and original meaning are uncertain.
Water 氵 beside 利 suggests a possible link to smooth or flowing water, but the meaning is not established. Think of it as a rare water-related kanji.
For レン, imagine a lens focusing on a smooth water surface: lens -> レン, and the water radical 氵 keeps the scene wet.
—