Proto-IE: *(s)plend-
Meaning: to shine
Tokharian: A, B plānt- 'rejoice, be glad' (PT *plānt-) (Adams 425)
Latin: splendeō, -ēre `glänzen', splendidus, -a `glänzend', splendor, -ōris m. `Glanz'
Celtic: *landis, *lanstu- > MIr lainn `hell, glänzend', lēss `Licht', Ir loinnreadh `Glanz'; Cymr llathru `putzen'
Russ. meaning: светить(ся)
References: WP II 679 f
