- TIL that the supposed inventor of tennis originally wanted the sport to be called "Sphairistike" http://www.worldwidewords.org/weirdwords/ww-sph2.htm 4 comments tennis
- "Chav is almost certainly from the Romany word for a child, chavi." (Do I understand Britain? Not entirely.) http://www.worldwidewords.org/topicalwords/tw-cha2.htm 37 comments europe
- How far we've come with notation. It used to be that the elements of equations were individually spelled-out. This word in particular is a good reason to abandon that habit. http://www.worldwidewords.org/weirdwords/ww-zen1.htm 7 comments math
- TIL " till " is older than " until " and is perfectly good English. " 'til " arose recently because people incorrectly thought " till " was a shortened form of "until", but it's not-- it's " till ", plain and simple. So don't use " 'til " . TIL. http://www.worldwidewords.org/qa/qa-unt1.htm 79 comments reddit.com