Dutch word aardig comes from Dutch -ig, Dutch aard (Nature, character, disposition .)

Detailed word origin of aardig

Dictionary entry	Language	Definition
-ig	Dutch (nld)	-ed, having (when attached to a noun preceded by an adjective that describes the noun). -y; forms adjectives from nouns.
aard	Dutch (nld)	Nature, character, disposition .
aardig	Dutch (nld)	Fairly. Nicely Considerable, substantial. Friendly, nice. Nice.

Words with the same origin as aardig