MBP
Do you mean U ( as in cup) or U as in use?
So u don't understand the English 'open, long' and 'closed, short' vowel spelling system (which the OP asked about) either?
E.g. up, cup, under - use, unit, usual. I explained it on page 2. Here is my explanation again.
English has a unique and rather complex system for showing whether
the vowels a, i, o, u (and, to a lesser extent e) are long or short, as in:
flat, flatten ? inflate; hem, hemmed ? theme;
hid, hidden ? hide; dot, dotty ? dote; tub, tubby ? tube.
When the vowels a, e, i, o and u are followed by just one consonant (or several consonants and a vowel), they are 'closed' and are supposed to have a short sound, as in:
at, pet, pin, dot, bun
actor, tender, hinder, doctor, bunting.
If a consonant after the letters a, e, i, o and u is followed by another vowel, they are supposed to be ?open? and long, as in:
hale, halo; peter, period; fine, final; sole, solo;
tube, tubular'.
If a stressed vowel before a consonant and another vowel is to stay short, it is supposed to be followed by a doubled consonant:
attitude, petty, pinnacle, dotty, bunny.
Hence:
cut + er = cutter: cute + er = cuter.
Several thousand English words conform to this system.
Unfortunately, there are also hundreds of words which break the ?open and shut? rule in five different ways.
- Nearly 400 words of more than one syllable break the doubling rule by
failing to double a consonant after a short, stressed vowel
(habit, very, city, body, study) .
- Another 158 words have doubled consonants which are
unrelated to keeping a stressed vowel short
(accommodation, hello, immense, occur, hurrah).
- Several hundred words with short vowels have a
misleading, surplus ?e:
have, seven, gone ? cf. save, even, bone.
- Nearly 200 words have
irregular spellings for the short vowels e, i and u
(bread, pretty, touch),
sometimes combined with missing doubled consonants as well
(many, women; money).
5.The ?open? vowel method is disobeyed by
87 words for long a (made - paid; make - break),
79 for long i (while - whilst, mime - climb)
100 for long o (mole ? bowl, roll, soul)
and
the ?e-e? spelling is used in just 86 words
and different ones in 366 (eke ? seek, speak, shriek).
This leave many children confused about the 'open, long' and 'closed, short' vowel spelling system, as introduced in the 14th century and most clearly evident in the writings of Chaucer.
It is also one of the main reasons why learning to write English takes so long.
The system was wrecked by mainly 16the century printers, mostly the foreign ones who printed the first English bibles and spoke no word of English.
Also by Sam Johnson for his 1755 dictionary. He deleted doubled consonants from many words of Latin origin (e.g. cittie, pittie) although not all (horror, terror). He worshipped Latin and was contemptuous of English spelling patterns.