Proto-Lezghian: *k:om:ol
Meaning: 1 cloud 2 rheumatism
Lezghian: kp:ul 2
Rutul: gɨbɨl 1,2
Tsakhur: gumɨl' 1
Comment: 4th class in Rut. and Tsakh. (in Tsakh. free variants exist: gɨmɨl', gumɨl' and gumul'). Note the peculiar semantic shift: 'cloud' > 'damp,cold' > 'rheumatism'.