[un.rid.dle] vt (ca. 1586): to find the explanation of: figure out, solve "~ a puzzle" "no trouble unriddling three-part syllogisms --New Yorker"; also: to make understandable: explain "just trying to ~ the man --Helen Dudar"
UNRIDDLE
Meaning of UNRIDDLE in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012