ebba

As a noun wane

is a gradual diminution in power, value, intensity etc or wane can be (scotland|slang) a child or wane can be (chiefly|northern england|and|scotland|obsolete) a house or dwelling.

As a verb wane

is (label) to progressively lose its splendor, value, ardor, power, intensity etc; to decline.

As a proper noun ebba is

.

As proper nouns the difference between flood and ebba

is that flood is (biblical) the flood referred to in the book of genesis in the old testament while ebba is .