English observe

← Old English searu (cognate)

← Middle French observer (derived)

← Old French (derived)

← Gothic 𐍃𐌰𐍂𐍅𐌰 (cognate)

← Proto-Indo-European *ser- (guard) (root)

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

← Latin observare (derived)

← Latin ob (mention)

← Latin servare (mention)

→ English see (link)

→ English observation (suffix)

→ English conserve (mention)

→ English observable (suffix)

→ English observance (affix)

→ English observer (affix)

→ English observeth (suffix)

→ English obnosis (mention)

→ English observability (suffix)

→ English misobserve (prefix)

→ English observee (suffix)

→ English observest (suffix)

→ English reobserve (prefix)