Wurdahuzdą: Proto-Germanic dictionary

noun masculine an-stem clasp; clamp lump; mass; clump Perhaps leveled from an earlier n-stem *kl(e/a)mbô ~ *klumppaz, from Proto-Indo-European *glembʰ- (‘clasp; mass’), apparently a nasal-infixed form of *glebʰ- (‘to clasp’) (compare Lithuanian glė́bti (‘to clasp, clench, seize; to embrace; to take care of’), Latvian glēbt (‘to guard, protect’); Lithuanian glóbti (‘to hug, embrace; to wrap up; to care for’), Latvian glābt (‘to guard, protect, help’); Slovene glábiti (‘to rake together, gather’)), itself possibly extended from *gel- (‘to form into a ball; ball’). Most cognates however are uncertain and affected by sound-symbolism; see e.g. Latin glaeba, globus, glomus and Proto-West Germanic *klott (‘clod’). On the other hand, Derksen considers the root in Germanic and Balto-Slavic to be an isogloss of substrate origin, due to variation in both the initial consonant (*g⁽ʰ⁾ ~ *k; cf. Lithuanian klė́bti (‘to embrace’)) and final consonant (*bʰ ~ *(m)b)—the latter further evidenced by varying vowel length and accent in Baltic—as well as the intervening vowel (cf. Lithuanian glaũbti). Additionally there are similar words in both branches from initial *gr-: compare Proto-Germanic *krampô (‘clamp’), Lithuanian grė́bti (‘to rake; to seize, rob’).