Rejoicing or cheerful
Joycee is a modern elaboration of the name Joyce, which originally derived from the Breton name Josse, meaning 'lord'. Over time, it became associated with the English word 'joy', shifting its perceived meaning to one of happiness and cheer.
Less common today
Joycee isn't in the latest US Top 1000. It last peaked at #10,585 in 2010.
US births per 5-year period, 1990βpresent (SSA data).