What are the word records for start and end (starting and ending letters of word are identical)?

[ 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. ]

a.  longest prefix
        common word: abracadabra (4)
        uncommon word: benzeneazobenzene (7)
        hyphenated word: pleasantness-unpleasantness (12)
b.  beginning with each letter
        see list "Longest Start and End Prefix Beginning with Each Letter" below

Longest Start and End Prefix Beginning with Each Letter
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a        common word: abracadabra (4)
        hyphenated words: argie-bargie, argle-bargle, artsy-fartsy (5-t)
b        common word: bonobo (2)
        uncommon word: benzeneazobenzene (7)
c        common word: calendrical (3)
        hyphenated words: collar-to-collar, convexo-convex (6-t)
d        common words: decrepitude, dorado, decade, decide, decode, degrade, delude, denude, deride (2-t)
        uncommon words: dvandva, derider, desuetudes, diascordia (3-t)
        hyphenated word: door-to-door (4)
        phrase: diamond cut diamond (7)
e        common words: entitlement, entrapment, enticement, entailment, entrainment, entrenchment, entanglement, entertainment (3-t)
        uncommon word: einsteins (4)
        hyphenated word: eyeball-to-eyeball (7)
f        common word: felafel (3)
        hyphenated word: face-to-face (4)
        phrase: fleury counterfleury (6)
g        common word: galangal (3)
        uncommon word: galengale (4)
        hyphenated word: ground-to-ground (6)
        phrase: gentleman's gentleman (9)
h        common word: hotshot (3)
        hyphenated word: hand-to-hand (4)
        hyphenated word: hither-and-thither (6)
i        common words: ingesting, ionization, interpoint, ingathering, ingratiating, insulins (3-t)
        hyphenated words: itsy-bitsy, itty-bitty (4-t)
j        uncommon word: jigajig (3)
        phrase: justices' justice (7)
k        common words: keystroke, keepsake (2-t)
        uncommon word: kingmaking (4)
l        common words: lyrically, learnable, legible (2-t)
        hyphenated word: links-and-links (5)
        phrase: little by little (6)
m        common words: microeconomic, microcosmic, mesdames (3-t)
        uncommon words: muckamuck, mannesmann (4-t)
        hyphenated word: mouth-to-mouth (5)
        phrase: malariae malaria (7)
n        common word: nicotinic (3)
        hyphenated word: nighty-night (5)
        phrase: nous verrons ce que nous verrons (11)
o        common words: orchestrator, onion, orator, originator (2-t)
        uncommon words: overcover, okeydokey, outscouts, outshouts (4-t)
p        common words: pampa, periscope, phonograph, photograph (2-t)
        uncommon word: pungapung (4)
        hyphenated word: pleasantness-unpleasantness (12)
q        uncommon word: quelque (3)
r        common words: restructures, rasboras, redelivered, rediscovered, respires, restores (3-t)
        hyphenated word: river-driver (5)
        phrase: rational operation (6)
s        common words: sheesh, statist, strategist, stylist, structuralist, starburst, shortish, shish, stardust, shush, stockist, samosa, shrewish, salsa, seedcase, sense, sheepish, shellfish, stablest, ... and 19 others (2-t)
        uncommon words: singularising, sterraster (4-t)
        hyphenated words: station-to-station, surface-to-surface (7-t)
        phrase: shoulder to shoulder (8)
t        common word: tormentor (3)
        uncommon words: tarantara, taratantara, trinitrin (4-t)
        hyphenated words: tetes-a-tetes, toxin-antitoxin (5-t)
        phrase: the blind leading the blind (8)
u        common word: underground (3)
        uncommon word: undergrounder (5)
v        common words: verve, vegetative (2-t)
        hyphenated word: vis-a-vis (3)
w        common words: worldview, warsaw, wallow, wheelbarrow, whew, widow, willow, window, winnow, withdraw, withdrew (1-t)
        uncommon word: wishtonwish (4)
        hyphenated words: west-southwests, woman-to-woman (5-t)
        phrase: wheels within wheels (6)
x        common word: xerox (1)
y        common words: yummy, yucky, yeasty, yukky, yeomanry, yearly, yesterday, youthfully (1-t)
        hyphenated words: yackety-yack, yada-yada-yada, year-on-year (4-t)
        phrase: yadda yadda yadda (5)
z        uncommon words: zaragoza, zanthorhiza, zanza, zeolitize, zeroize (2-t)

-- Taxonomy of Wordplay, www.questrel.com