What are the word records for repeated prefix, longest?

language/english/spelling/structure/subset.of.word/repeated.prefix New

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

Problem

What are the word records for repeated prefix, longest?
(Spelling / Structure / Subset of Word)

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

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[ 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: [11-147,213,12-24]

common words: prepress, tartaric, kinkiness, barbarically, preprepared, alfalfas, assassin, barbaric, murmured, ... and 7 others (6-t)
uncommon word: countercountermeasure (14)
hyphenated word: testament-testamentar (18)

-- Taxonomy of Wordplay, www.questrel.com