Old English under-

← Old English under (cognate)

← Old English under (cognate)

← Proto-Germanic *under (inherited)

← Proto-Germanic *under (inherited)

← Old High German untar (cognate)

← Old High German untar (cognate)

← Proto-Indo-European *nter- (derived)

← Proto-Indo-European *ndhero- (derived)

← Latin inter (cognate)

← Latin infra (cognate)

→ English understand (cognate)

→ English under- (inherited)

→ Old English understandan (prefix)

→ Old English underburg (prefix)

→ Old English underfon (affix)