O.E.
slim "slime," from P.Gmc.
*slimaz (cf. O.N.
slim, O.Fris.
slym, Du.
slijm, Ger.
Schleim "slime"), probably related to O.E.
lim "sticky substance," from PIE base
*(s)lei- "slime, slimy, sticky, slippery" (cf. Rus.
slimak "snail;" O.C.S.
slina "spittle;" O.Ir.
sligim "to smear;" Welsh
llyfn "smooth;" Gk.
leimax "snail,"
limne "marsh, pool, lake;" L.
limus "slime, mud, mire,"
linere "to daub, besmear, rub out, erase;" see
lime (1)). The verb meaning "to cover with slime" is recorded from 1628. The figurative sense of
slimy as "morally repulsive" is first attested 1575.