Etymology: Middle English togedere, from Old English togædere, from tō to + gædere together; akin to Middle High German gater together, Old English gaderian to gather
Date: before 12th century
a. in or into one place, mass, collection, or group <the men get together every Thursday for poker> b. in a body ; as a group <students and faculty together presented the petition> 2. a. in or into contact (as connection, collision, or union) <mix these ingredients together> b. in or into association or relationship <colors that go well together> 3. a. at one time ; simultaneously <events that happened together> b. in succession <was depressed for days together> 4. a. by combined action ; jointly <together we forced the door> b. in or into agreement or harmony <the soloist and the orchestra weren't quite together> c. in or into a unified or coherent structure or an integrated whole <can't even put a simple sentence together> 5. a. with each other — used as an intensive after certain verbs <join together> <add together> b. as a unit ; in the aggregate <these arguments taken together make a convincing case> c. considered as a whole ; counted or summed up <all together, there were 21 entries> • togetherness noun II. adjective Date: 1963 1. appropriately prepared, organized, or balanced 2. composed in mind or manner ; self-possessed <a warm, sensitive, reasonably together girl — East Village Other>
New Collegiate Dictionary. 2001.