ˈȯldə(r) noun
( -s )
Etymology: Middle English alder, aller, from Old English alor, aler; akin to Old High German elira, erila alder, Old Norse ölr, (assumed) Gothic alisa (whence Spanish aliso ), Latin alnus, Late Greek (Macedonian dialect) aliza white poplar, Lithuanian al̃ksnis alder
1. : a tree or shrub of the genus Alnus
2. : any of several shrubs resembling the alder