Proto-IE: *leig'h-
Meaning: to lick
Old Indian: léḍhi, réḍhi, riháti, lihati, ptc. rīḍha-, līḍha- `to lick'; leha- m. `licker'
Avestan: 3 pl. raēzaite `sie lecken'
Other Iranian: NPers lištan `lecken'
Armenian: lizum, lizem, lizanem `lecke'
Old Greek: léi̯khō, aor. lêi̯ksai̯ `lecken', líkhno- `naschhaft, lüstern, gefrässig, lecker', likhnéu̯ō `lüstern sein, schwelgen', likhmáomai̯ `lecken, züngeln'
Latin: lingō, -ere, līnxī, līnctum `lecken'
Celtic: Cymr llywu, llyw `lecken', MBret leat `lecken'
Russ. meaning: лизать
References: WP II 400 f
