adj., n. (in phrase)
‘sunder, separation’ (in the phrase 'in sunder' ‘asunder’) (Modern English sunder)
*eni + *sunðraz
Proposed ON Etymon (OIcel representative)
sundr, í sundr 'asundr'
(ONP sundr (adv.))
Other Scandinavian Reflexes
Far sundur, Icel sundur, Norw sunder, sond(er), ODan sundær, syndær, søndær, Dan sønder, OSw sunder, synder, Sw sönder
in + sundor ‘asunder, apart, severally, differently’
Phonological and morphological markers
The adv. phrase with in is cited by MED only from the late 14c. and then widespread (inc. Higden and Chaucer), though disproportionately frequent in N and E and alliterative texts.
Occurrences in the Gersum Corpus