SOOTHLY

Etymology

Adverb

soothly (comparative more soothly, superlative most soothly)

(archaic) Truly, verily

Synonyms

• in fact, soothfast, verily; see also actually

Source: Wiktionary

Sooth"ly, adv.

Definition: In truth; truly; really; verily. [Obs.] "Soothly for to say." Chaucer.

SOOTH

Sooth, a.; also adv. [Compar. Soother; superl. Soothest.] Etym: [OE. soth, AS. s, for san; akin to OS. s, OHG. sand, Icel. sannr, Sw. sann, Dan. sand, Skr. sat, sant, real, genuine, present, being; properly p. pr. from a root meaning, to be, Skr. as, L. esse; also akin to Goth. sunjis true, Gr. satya. Absent, Am, Essence, Is, Soothe, Sutee.]

1. True; faithful; trustworthy. [Obs. or Scot.] The sentence [meaning] of it sooth is, out of doubt. Chaucer. That shall I sooth (said he) to you declare. Spensser.

2. Pleasing; delightful; sweet. [R.] The soothest shepherd that ever piped on plains. Milton. With jellies soother than the creamy curd. Keats.

Sooth, n. Etym: [AS. s. See Sooth, a.]

1. Truth; reality. [Archaic] The sooth it this, the cut fell to the knight. Chaucer. In sooth, I know not why I am so sad. Shak. In good sooth, Its mystery is love, its meaninng youth. Longfellow.

2. Augury; prognostication. [Obs.] The soothe of birds by beating of their wings. Spenser.

3. Blandishment; cajolery. [Obs.] Shak.

Source: Webster’s Unabridged Dictionary 1913 Edition