Domus in undis is "a home in the waves".
There are a couple of possibilities. "Villa" is the latin word for a house but "domus" meaning home can also be used however I think that is generally for more transitive or possessive purposes.
Domus
The Latin word for house is casa (or sometimes domus - cf. domestic in English). The word house is of Germanic origin.
The Latin root word for 'house' is "domus."
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The word domus originates from Latin. When translated, it means house or home. A popular Latin phrase is omnis cedo domus. It means everybody goes home.
Undis Blikken died in 1992.