adj., v. (3rd sg. pres.)
Cl pres. ptcp. (as adj.) balterande
'roll around; hobble'(Modern English balter)
Always derived from a lost ON etymon, the closest parallel to this unusual v. is Dan boltre (and ablaut variant Dan dial baltre, cp. Norw dial baltra) a reflexive form derived from ODan bolte 'grapple, throw, roll along' (cp. Norw dial bolta 'rumble, storm forward', Sw bulta 'knock' and similar reflexive forms). It comes from the same PGmc root as the n. *bultaz (cp. OIcel boltr, OE bolt, MLG bolte 'bolt', OHG bolz 'catapult'), but the ult. etymology is debated (see further Kroonen, Orel).
*balt- ( ~ *bult-)
Proposed ON Etymon (OIcel representative)
Other Scandinavian Reflexes
Norw dial bolta, baltra, Sw bulta, bultra, ODan bolte, Dan baltre, boltre
Phonological and morphological markers
MED's citations are exclusively N, as is the word in MnE dial (EDD).
Occurrences in the Gersum Corpus
Cl 103; Pat 459