What are the word records for reversal pair (reverse the letters in a word to form another word)?

language/english/spelling/relations.to.other.words/entire.word/reversal.pair New

New entry, edited from material collected for the archive and not yet in a released version.

Problem

What are the word records for reversal pair (reverse the letters in a word to form another word)?
(Spelling / Relations to Other Words / Entire Word)

  a.  longest
  b.  inside-out word pair (reverse letters in word halves and/or reverse word halves), longest

[ Editor: question framed by the editor from the headings of the Taxonomy of Wordplay. ]

Show solution

[ Editor: from the Taxonomy of Wordplay, www.questrel.com, retrieved 28 Oct 2026. Classes (common, uncommon, hyphenated words, phrases), scores, ties (-t) and the source codes in brackets are explained in language/english/word.records.introduction. ]

Sources: [L38,288,14-93,151,218]

a.  longest
        common words: desserts & stressed (8)
b.  inside-out word pair (reverse letters in word halves and/or reverse word halves), longest
e.g., CITRUS = RUSTIC, CIRCLE = CLERIC, LEMONS = MELONS
        common words: downward & drawdown (8-t)
        common words: backward & drawback (8-t)
        common words: alerting & relating (8-t)
        common words: presents & serpents (8-t)
        common words: brawlers & warblers (8-t)
        common words: brawling & warbling (8-t)
        uncommon words: aminations & animations (10-t)
        uncommon words: generation & renegation (10-t)
        uncommon words: underparts & understrap (10-t)
        uncommon words: underdraws & undersward (10-t)

-- Taxonomy of Wordplay, www.questrel.com