USAGE
In most contexts， till and until have the same meaning and are interchangeable. The main difference is that till is generally considered to be more informal than until. Until occurs more frequently than till in writing - around ten times as often in the British National Corpus. In addition， until tends to be the natural choice at the beginning of a sentence: until very recently， there was still a chance of rescuing the situation.Interestingly， while it is commonly assumed that till is an abbreviated form of until （the spellings 'till and 'til reflect this）， till is in fact the earlier form. Until appears to have been formed by the addition of Old Norse und 'as far as' several hundred years after the date of the first records for till.
词源
Old English til, of Germanic origin; related to Old Norse til 'to'， also ultimately to TILL3.
- a cash register or drawer for money in a shop, bank, or restaurant（商店、银行或饭店的）现金出纳机; 放钱的抽屉; 钱柜。
短语
have（或with）one's fingers（或hand）in the till
- used in reference to theft from one's place of work在本单位行窃, 作内贼：
he was caught with his hand in the till and sacked.
他在本单位行窃时被当场抓住并被解雇。
词源
late Middle English （in the general sense 'drawer or compartment for valuables'）： of unknown origin.
with obj.
- prepare and cultivate (land) for crops耕, 犁：
no land was being tilled or crops sown.
土地都尚未耕, 庄稼也未播种。
派生词
tillable
adjective词源
Old English tilian 'strive for， obtain by effort'， of Germanic origin; related to Dutch telen 'produce， cultivate' and German zielen 'aim， strive'， also ultimately to TILL1. The current sense dates from Middle English.