*er- 2

also aard-vark, South African groundhog, 1833 (in German from 1824), from Afrikaans Dutch aardvark, literally "earth-pig" (it burrows), from aard "earth," from Proto-Germanic *ertho- (see earth (n.)) + vark "pig," from Middle Dutch varken "small pig," which is from Proto-Germanic *farhaz (source also of Old High German farah, German Ferkel "young pig, sucking pig," a diminutive form; Old English fearh), from PIE root *porko- "young pig."

also aard-wolf, "small, insectivorous mammal native to East and Southern Africa, related to the hyena," 1833, from Afrikaans Dutch aardwolf, literally "earth-wolf," from aard "earth" (see earth (n.)) + wolf "wolf" (see wolf (n.)).