fremful

Middle English

From Old English fremful (“useful, profitable, beneficial, generous; effective”); equivalent to freme +‎ -ful.

fremful

useful, profitable, beneficial, effective
- Þeos wyrt mandragora hys fremful. — Herbarium and Medicina de Quadrupedibus, circa 1150
  (The herb mandragon is effective.)

freme — benefit, profit, advantage, use
fremen — to help (someone), to aid, advance, benefit, be profitable to, do good to
fremfulliche — profitably
fremfulnesse — beneficial nature, effectiveness
fremsomness — beneficence
fremung — effect, good or salutary effect
fulfremed — fulfilled, accomplished; completed, perfected; complete, perfect.

freme (“benefit, profit”) +‎ -ful

fremful

Declension of fremful — Strong

Singular	Masculine	Feminine	Neuter
Nominative	fremful	fremful	fremful
Accusative	fremfulne	fremfulle	fremful
Genitive	fremfulles	fremfulre	fremfulles
Dative	fremfullum	fremfulre	fremfullum
Instrumental	fremfulle	fremfulre	fremfulle
Plural	Masculine	Feminine	Neuter
Nominative	fremfulle	fremfulla, fremfulle	fremful
Accusative	fremfulle	fremfulla, fremfulle	fremful
Genitive	fremfulra	fremfulra	fremfulra
Dative	fremfullum	fremfullum	fremfullum
Instrumental	fremfullum	fremfullum	fremfullum

Declension of fremful — Weak

Singular	Masculine	Feminine	Neuter
Nominative	fremfulla	fremfulle	fremfulle
Accusative	fremfullan	fremfullan	fremfulle
Genitive	fremfullan	fremfullan	fremfullan
Dative	fremfullan	fremfullan	fremfullan
Instrumental	fremfullan	fremfullan	fremfullan
Plural	Masculine	Feminine	Neuter
Nominative	fremfullan	fremfullan	fremfullan
Accusative	fremfullan	fremfullan	fremfullan
Genitive	fremfulra, fremfullena	fremfulra, fremfullena	fremfulra, fremfullena
Dative	fremfullum	fremfullum	fremfullum
Instrumental	fremfullum	fremfullum	fremfullum

Joseph Bosworth and T. Northcote Toller (1898) “fremfull”, in An Anglo-Saxon Dictionary‎^[1], 2nd edition, Oxford: Oxford University Press.