What are the word records for sum pair (adding adjacent letters forms another word)?

language/english/spelling/alphabetical.order/entire.word/sum.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 sum pair (adding adjacent letters forms another word)?
(Spelling / Alphabetical Order / Entire Word)

  a.  longest
  b.  longest progressive

[ 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: [12-216]

e.g., CAN = DO: D = C + A, O = A + N
a.  longest
        common words: affine = glows (6-t)
        common words: sanded = torii (6-t)
        uncommon words: mandira = normas (7-t)
        uncommon words: canfuls = dotage (7-t)
        uncommon words: exciton = calcic (7-t)
        uncommon words: charpoy = kishen (7-t)
        uncommon words: baghdad = cholee (7-t)
        uncommon words: czarish = casaba (7-t)
        ... and 3 others
b.  longest progressive
        common words: look = adz = ed = i (4-t)
        common words: trio = lax = my = l (4-t)
        common words: sank = toy = in = w (4-t)
        uncommon words: enfin = stow = mil = vu = q (5-t)
        uncommon words: dolby = sana = too = id = m (5-t)
        uncommon words: sande = tori = iga = ph = x (5-t)
        uncommon words: lazzo = mazo = nao = op = e (5-t)
        uncommon words: abyed = cadi = dem = ir = a (5-t)
        uncommon words: cymba = bloc = nar = os = h (5-t)
        ... and 3 others

-- Taxonomy of Wordplay, www.questrel.com