The Spelling of till and until in English
Vivian Cook detailed text on until/till

It is usually claimed that till has been a separate word from until since Old English pre-1066; hence it is odd to spell till with an apostrophe 'til, as it is not an abbreviation, nor indeed with a single "l" til/'til as two apostrophes 'til' would be more logical.

Some Current Uses

'Til apostrophe 'til apostrophe 'til English punctuation spelling punctuation mistake
'til apostrophe punctuation shop 'til you drop

Countdown'Til Christmas!
Month's 'Til Christmas
Days 'Til Christmas
Hours 'Til Christmas
Minutes 'Til Christmas
Seconds 'Til Christmas

Scissor sharp script will keep you laughing til' your short back and sides split. TOTAL FILM
We'll Work 'Til Jesus Comes - Cassette
Paramount Studios presents 'Til There Was You (1997)

untill English spelling mistake until

til no apostrophe punctuation

open til 1100 till English spelling mistake
til' Ram Jam Inn apostrophe  'till

Frequency of different forms in English

 

British National Corpus

Google

until

93.8

93

till

6.0

3.81

til/'til

0.1

3.7

Sample size 

31976

57,730,000

Note: it is almost impossible to eliminate the Scandinavian word til from the Google scores, hence overestimating it considerably.

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