Is the past tense for the word "earn" "earned" or "earnt", and does the word "earnt" even exist?
Learn English – Is “earnt” a real word
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I did some research using the Corpus of Historical American English to see if I could track the history of these words. Each of these words has a different story to tell.
DREAMED and DREAMT
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In the early 1800s, dreamt was more common than dreamed but by the mid-1800s, dreamed was much more common and has stayed so since. While there is nothing wrong with continuing to use dreamt, dreamed is definitely the more common form.
LEAPED and LEAPT
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Leaped has long been more popular than leapt, though leaped has been in decline since 1900, and leapt has been on the increase since 1950, and today they are about equally common. It is likely that if the current trends continue, leapt will become decisively more common than leaped within a decade or two. Indeed, in the Corpus of Contemporary American English, leapt has 484 incidences for 2005-2010 and only 460 for leaped. So, both are about equally common these days and you are in good company if you prefer leapt.
SWEEPED and SWEPT
Neither COCA nor COHA have any results for sweeped, nor does any dictionary I checked list sweeped as a possible past tense form for sweep. Sweeped doesn’t appear to have had any currency in American English since 1810. Google reports only 43,000 results for sweeped compared with 78,000,000 for swept.
LIGHTED and LIT
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Apparently, lighted was much more popular than lit, from the early 1800s until about 1940. During this time lit was steadily gaining popularity, while lighted began a precipitous decline in 1940. Today, lit is much more popular than lighted, so if you prefer lit, you are in very good company. However, there would be trouble objecting to lighted on historical grounds, as lighted was by far the most common form until the 1940s.
I'm afraid it's not a real word, and the inability to find it any dictionary will confirm that.
Richard Ayoade used the 9 letters on the countdown board in a humorous manner as, had it been a real word, it would have won.
The episode in question was not a "real" episode of Countdown - I believe it was an episode of The IT Crowd.
Best Answer
According to the Wiktionary, "earnt" is correct but not common:
"Earned" is much more common. The Merrian-Webster online dictionary doesn't even have an entry for "earnt". The entry for "earned" is here: http://www.merriam-webster.com/dictionary/earned
According to the same Wictionary page,
But it should be noted that "learnt", "dreamt" and "spelt" are more common than "earnt". See comments below.