I. ˈtan-dəm noun
Etymology: Latin, at last, at length (taken to mean “lengthwise”), from tam so; akin to Old English thæt that
Date: circa 1785
1.
a.
(1) : a 2-seated carriage drawn by horses harnessed one before the other
(2) : a team so harnessed
b. : tandem bicycle
c. : a vehicle (as a motortruck) having close-coupled pairs of axles
2. : a group of two or more arranged one behind the other or used or acting in conjunction
•
- in tandem
II. adverb
Date: circa 1795
: one after or behind another
ride tandem
III. adjective
Date: 1815
1. : consisting of things or having parts arranged one behind the other
2. : working or occurring in conjunction with each other