The -re ending in British English spelling derives from French -re. However, most French loanwords originally ending in -re in Old/Middle French or Anglo-Norman had their spelling changed to -er in modern British English, for example number, order, letter, chapter, member, offer, minister, monster, oyster, tender, proper, September, etc.

Why then did the -re spelling persist in a minority of words, such as centre, fibre, sombre, lustre, saltpetre, theatre, meagre, etc., in British English? Were the -er spelling variants of these words just somehow not common enough in Middle English for later lexicographers to adopt the -er spelling as the standard for these words?

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    Related: similar words that change their spellingfrom -ter to -tre ... or not. There's a lot of relevant coverage, of -re / -er words in general, but not really an answer to 'why?'. // Webster, of course, 'rationalised' (some) spellings in 'AmE', switching to -er where that seems to render the pronunciation more felicitously. But English (the language!) spelling retains a lot of inconsistencies. Commented Apr 10, 2020 at 10:56
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    word-ending that sometimes distinguish British from American English. In the U.S., the change from -re to -er (to match pronunciation) in words such as fibre, centre, theatre began late 18c.; under urging of Noah Webster (1804 edition of his speller, and especially the 1806 dictionary), it was established over the next 25 years. The -re spelling, like -our, however, had the authority of Johnson's dictionary behind it and remained in Britain, where it came to be a point of national pride, contra the Yankees. etymonline.com/word/-re#etymonline_v_25840
    – user 66974
    Commented Apr 10, 2020 at 11:33
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    Because Noah Webster lived in the US.
    – Hot Licks
    Commented Apr 13, 2020 at 15:43

1 Answer 1


I looked in the OED at the etymology of finger – Germanic origin; chamber – Romance origin but adopted early in Germanic languages, and Centre – Romance origin only.

The entry for finger records 49 variations in spelling until standardisation.

The entry for chamber records 123 variations in spelling until standardisation.

The entry for centre/center records 10 variations in spelling until standardisation.

In broad terms, standardisation took place in the early 18th century. At this point, spellings were fixed.

Of Centre/center, the OED notes

The prevalent spelling in the early modern period, from the 16th to the 18th centuries, was center (so in editions of major authors like Shakespeare, Milton, Pope, etc., as well as in the early dictionaries, down to all thirty editions of Bailey from 1721 to 1802). However, the technical volume of Bailey (Vol. II.), 1727–31, and the folio, 1730–6, have centre; Johnson (1755), who based his dictionary on an interleaved copy of Bailey's folio of 1730, adopted this spelling, and following Johnson's precedent, centre has become the usual form in British usage, whereas in U.S. usage center prevails.

Of chamber and finger, the OED gives the –re form as Middle English and pre-17th century.

Your answer is thus “It is like that because that is what was used and taught.”

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