Quote Originally Posted by RedHedd

Forsooth and FiveSooth (what's a sooth?)
Prolly otta be "for sooth" (two words) ... dunno 'bout "Five sooth"

sooth (sth) Archaic
adj.
1. Real; true.
2. Soft; smooth.

n.
Truth; reality.

[Middle English, from Old English sth; see es- in Indo-European roots.]

adv.
sooth'ly

Thesaurus
Noun
1.sooth - truth or reality; "in sooth"

truthfulness - the quality of being truthful
archaicism, archaism - the use of an archaic expression