Etymology

Formed within English on ME þryue (v.) (see þryuande (adj., adj. as sb.)) + prefix un-, cp. þryuandely (adv.), vnþryuande (adj.).

PGmc Ancestor

*þrīfan-

Proposed ON Etymon (OIcel representative)

þrífa-sk ‘to thrive’
(ONP þrífa (vb., C.))

Other Scandinavian Reflexes

Far tríva, trívast, Icel þrífa, þrívast, Norw triva, Dan trives, MSw thrive

OE Cognate

Phonological and morphological markers

Summary category

B1c

Attestation

Only otherwise cited by MED from (a1387) Trev.Higd. (StJ-C H.1) and a1450 Yk.Pl. (Add 35290), but see further þryuande (adj., adj. as sb.), þryuandely (adv.), vnþryuande (adj.), which are largely N and esp. found in alliterative poetry.

Occurrences in the Gersum Corpus

Cl 135

Bibliography

MED unthrīvinglī (adv.) , OED unthriving (adj.)http://www.oed.com/view/Entry/218907?redirectedFrom=unthrivingly&], HTOED ; see further þryue (v.).