Originally spelled theatre and teatre, from around 1550 to 1700 or later, the most common spelling was theater. Between 1720 and 1750, theater was dropped in British English, but was either retained or revived in American English (Oxford English Dictionary, 2nd edition, 2009, CD-ROM: பன்னாட்டுத் தரப்புத்தக எண்9780199563838). Recent dictionaries of American English list theatre as a less common variant, e.g., Random House Webster's College Dictionary (1991); The American Heritage Dictionary of the English Language, 4th edition (2006); New Oxford American Dictionary, third edition (2010); Merriam-Webster Dictionary (2011).
