Noble type or of noble birth
Hydee is a modern phonetic spelling variant of Heidi, which originated as a German diminutive of Adelheid. It carries the same etymological roots meaning nobility and high status. While the 'y' spelling gives it a contemporary American feel, its heritage is deeply rooted in ancient Germanic traditions.
Less common today
Hydee isn't in the latest US Top 1000. It last peaked at #10,135 in 2009.
US births per 5-year period, 1990βpresent (SSA data).