Etymograph > Indo-European > Proto-Northwest Germanic > Rules > pnwgmc-weak-verb-alternation

Source: Ringe 2014:161

word is V and word ends with 'ōn':

Examples

FromToGlossStepsExpected
PGmc *liznōn-OE leornianto learnliznōn- > liznōjan > leornian
PGmc *bugōn-OE bogianbrag(?)bugōn- > bugōjan > bogian
PGmc *burkōn-OE borcianroarburkōn- > burkōjan > borcian
PGmc *fandōn-OE fandianinvestigatefandōn- > fandōjan > fandian
PGmc *fatōn-OE fatianfetchfatōn- > fatōjan > fatian
PGmc *flutōn-OE flotianfloat, streamflutōn- > flutōjan > flotian
PGmc *friōn-OE frēoġanlovefriōn- > friōjan > friianfriian
PGmc *fundōn-OE fundiantry to find(?)fundōn- > fundōjan > fundian
PGmc *graipōn-OE grāpiangropegraipōn- > graipōjan > grāpian
PGmc *hnuppōn-OE hnoppiantear offhnuppōn- > hnuppōjan > hnoppian
PGmc *hradōn-OE hradianrush, tumblehradōn- > hradōjan > hradian
PGmc *huntōn-OE huntianchasehuntōn- > huntōjan > huntian
PGmc *huppōn-OE hoppianhop, jumphuppōn- > huppōjan > hoppian
PGmc *kapōn-OE capianstarekapōn- > kapōjan > capian
PGmc *kippōn-OE ċippianchop(?)kippōn- > kippōjan > ċippian
PGmc *kitōn-OE citelianticklekitōn- > kitōjan > ċitianċitian
PGmc *krammōn-OE crammiansqueezekrammōn- > krammōjan > crammian
PGmc *lappōn-OE lapianlick up, laplappōn- > lappōjan > lappianlappian
PGmc *lēkinōn-OE lǣcnianheallēkinōn- > lākinōn > lākinōjan > lǣcnian
PGmc *likkōn-OE liccianlicklikkōn- > likkōjan > liccian
PGmc *prikōn-OE pricianprickprikōn- > prikōjan > prician
PGmc *putōn-OE potianpoke, prodputōn- > putōjan > potian
PGmc *rukkōn-OE roccianmove to and fro, to rockrukkōn- > rukkōjan > roccian
PGmc *sikkōn-OE siceriantricklesikkōn- > sikkōjan > sicciansiccian
PGmc *smukōn-OE smociansmokesmukōn- > smukōjan > smocian
PGmc *stikōn-OE sticianstickstikōn- > stikōjan > stician
PGmc *sukkōn-OE socianto sucksukkōn- > sukkōjan > socciansoccian
PGmc *suppōn-OE soppiansoaksuppōn- > suppōjan > soppian
PGmc *swippōn-OE swipiansway, swerveswippōn- > swippōjan > swippianswippian
PGmc *þukōn-OE þocerianshoveþukōn- > þukōjan > þocianþocian
PGmc *wikkōn-OE wiccianpractice sorcerywikkōn- > wikkōjan > wiccian
PGmc *wlaitōn-OE wlātianlookwlaitōn- > wlaitōjan > wlātian
PGmc *wagōn-OE wagianmove, shakewagōn- > wagōjan > wagian
PGmc *tugōn-OE togianpull, jerktugōn- > tugōjan > togian
PGmc *þrabōn-OE þrafiantrotþrabōn- > þrabōjan > þrafian
PGmc *hragōn-pre-OE *hraganjut outhragōn- > hragōjan > hragianhragian
PGmc *lukkōn-pre-OE *loccianenticelukkōn- > lukkōjan > loccian
PGmc *wallōn-OE weallianrollwallōn- > wallōjan > weallian
PGmc *gabōn-OE gabbianjokegabōn- > gabōjan > gafiangafian
PGmc *þudōn-OE þodettanbumpþudōn- > þudōjan > þodianþodian
PGmc *smittōn-OE smittianstrike; to smudgesmittōn- > smittōjan > smittian
PGmc *plukkōn-OE ploccianpluckplukkōn- > plukkōjan > ploccian
PGmc *strukkōn-OE stroccianstrokestrukkōn- > strukkōjan > stroccian

word is V and word ends with 'ēn':

Examples

FromToGlossStepsExpected
PGmc *bibēn-OE beofiantremblebibēn- > bibējan > bifianbifian
PGmc *buwwēn-OE bogiandwell; to form, buildbuwwēn- > buwwējan > boowianboowian
PGmc *dazēn-OE darianbe numbed(?)dazēn- > dazējan > dæriandærian
PGmc *drūsēn-OE drūsianfall asleepdrūsēn- > drūsējan > drūsian
PGmc *fulgēn-OE fylganfollow, accompanyfulgēn- > fulgējan > folgianfolgian
PGmc *giwēn-OE ġiwiandesire, long forgiwēn- > giwējan > ġeowianġeowian
PGmc *habēn-OE habbanhavehabēn- > habējan > hæfianhæfian
PGmc *hawēn-OE hawianobservehawēn- > hawējan > hawian
PGmc *hīgēn-OE hīġianpant(?)hīgēn- > hīgējan > hīġian
PGmc *hlinēn-OE hlinianleanhlinēn- > hlinējan > hlinian
PGmc *klibēn-OE clifianstickklibēn- > klibējan > clifian
PGmc *krabēn-OE crafianurge, demandkrabēn- > krabējan > cræfiancræfian
PGmc *libēn-OE libbanbe left; to livelibēn- > libējan > lifianlifian
PGmc *stūpēn-OE stūpianstoopstūpēn- > stūpējan > stūpian
PGmc *swīgēn-OE swīġianbe silentswīgēn- > swīgējan > swīġian
PGmc *trūēn-OE trūwiantrusttrūēn- > trūējan > trūwian
PGmc *þrōēn-OE þrōwianendureþrōēn- > þrōējan > þrōwian
PGmc *witēn-OE witianwatch, heedwitēn- > witējan > witian
PGmc *wunēn-OE wunianbe used towunēn- > wunējan > wunian
PGmc *gumēn-pre-OE *gumianpay attentiongumēn- > gumējan > gumian
PGmc *fiēn-OE fēoġanhatefiēn- > fiējan > fieġanfieġan

otherwise:

Sequences

pgmc-to-pnwgmc: previous pnwgmc-er
pgmc-to-pwgmc: previous pnwgmc-er, next pwgmc-unstressed-ai
pgmc-to-oe: previous pnwgmc-er, next pwgmc-unstressed-ai