Proto-South Dravidian : *zōmb-
Meaning : idle, drowsy
Tamil : cōmpu (cōmpi-)
Tamil meaning : to be idle, indolent, slothful, lethargic, apathetic, dull, droop, fade (as persons, plants), be spoiled, marred; n. sloth, idleness, inactivity, lethargy, dullness
Tamil derivates : cōmpal sloth, drowsiness, stupor; cōmpēr_i, cōmār_i sluggard, idler; cōmār_u (cōmār_i-) to be lazy, shirk; cōppu (cōppi-) to cause to droop, languish; cōpam fainting, swooning, languor, lassitude, fatigue, prostration, drowsiness, heaviness, indolence; cōpalam laziness, sluggishness
Kannada : jompisu, jōmpisu
Kannada meaning : to get intoxicated, bewildered, stupefied
Kannada derivates : jompu, jōmpu inebriation, stupor, suspension of sensibility, paralysation; jommu id.; sound used of the sensation of numbness of a limb kept long in one position (also jōmu); jōba, jōbadra a dull, lazy man; sōmāri sluggard, idler; sōmāritana sluggishness, laziness; soppisu to cause to slacken, languish, sink away; soppu to slacken, repress, check; n. slackness, weakness, languishing, sinking away
Tulu : sōmāri
Tulu meaning : lazy man, lazy, indolent
Notes : All the forms with initial *s- seem to be Tamil borrowings: Tamil cōmpēr_i/cōmār_i is responsible for Kota cōmāry/cōmbēry, Kan. and Tulu sōmāri; Kannada soppu, soppisu < Tam. cōppu?
Number in DED : 2882
