sweotol

Old English

From Proto-West Germanic *switul, from Proto-Germanic *switulaz (“clear; evident”), possibly from an early merging of Proto-Germanic *sw- (“self”) from Proto-Indo-European *swō + witan (“to know”), from Proto-Germanic *witaną, with the suffix +‎ -ol (“prone to doing”) from Proto-Germanic *-ulaz (adjective suffix), with the general meaning "self-knowable", thus "evident", however possible derivatives such as *witulaz, *witol (evident) and *switaną, *switan (to know oneself) do not exist outside of this adjective.

sweotol (superlative sweotolost)

Declension of sweotol — Strong

Singular	Masculine	Feminine	Neuter
Nominative	sweotol	sweotol	sweotol
Accusative	sweotolne	sweotole	sweotol
Genitive	sweotoles	sweotolre	sweotoles
Dative	sweotolum	sweotolre	sweotolum
Instrumental	sweotole	sweotolre	sweotole
Plural	Masculine	Feminine	Neuter
Nominative	sweotole	sweotola, sweotole	sweotol
Accusative	sweotole	sweotola, sweotole	sweotol
Genitive	sweotolra	sweotolra	sweotolra
Dative	sweotolum	sweotolum	sweotolum
Instrumental	sweotolum	sweotolum	sweotolum

Declension of sweotol — Weak

Singular	Masculine	Feminine	Neuter
Nominative	sweotola	sweotole	sweotole
Accusative	sweotolan	sweotolan	sweotole
Genitive	sweotolan	sweotolan	sweotolan
Dative	sweotolan	sweotolan	sweotolan
Instrumental	sweotolan	sweotolan	sweotolan
Plural	Masculine	Feminine	Neuter
Nominative	sweotolan	sweotolan	sweotolan
Accusative	sweotolan	sweotolan	sweotolan
Genitive	sweotolra, sweotolena	sweotolra, sweotolena	sweotolra, sweotolena
Dative	sweotolum	sweotolum	sweotolum
Instrumental	sweotolum	sweotolum	sweotolum

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