I. ˈel noun
Etymology: Middle English eln, from Old English; akin to Old High German elina ell, Latin ulna forearm, Greek ōlenē elbow, Sanskrit aratni
Date: before 12th century
: a former English unit of length (as for cloth) equal to 45 inches (about 1.14 meters) ; also : any of various units of length used similarly
II. noun
Etymology: alteration of el (I)
Date: 1773
1. : an extension at right angles to the length of a building
2. : an elbow in a pipe or conduit