English edit

Etymology edit

From Middle English sothly, soþliche, from Old English sōþlīċe; equivalent to sooth +‎ -ly.

Adverb edit

soothly (comparative more soothly, superlative most soothly)

  1. (archaic) Truly, verily.
    Synonyms: in fact, soothfast; see also Thesaurus:actually