together; in combination or partnership; in common: My brother and I own the farm jointly.

Origin of jointly

Middle English word dating back to 1300–50; see origin at joint, -ly
Related formsqua·si-joint·ly, adverb Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for jointly

Contemporary Examples of jointly

Historical Examples of jointly

Word Origin and History for jointly

c.1300, from joint (adj.) + -ly (2). It seems to have chased out joinly (early 15c.).

Online Etymology Dictionary, © 2010 Douglas Harper