From Italian domani, meaning tomorrow.
Domani is the Italian word for "tomorrow," descended through Latin *de mane* ("of the morning") and carrying within it the whole arc of Latin's transformation into the Romance languages. In Italian culture the word has long been tinged with philosophical irony — the phrase *rimandare a domani* (to put off until tomorrow) captures a certain Mediterranean relationship with time — yet as a name it sheds that ambivalence and becomes purely forward-looking: a declaration of hope, of the future, of the child as tomorrow itself. As a given name, Domani has roots in Italian-American communities and among African-American families drawn to its romantic sound and its meaning.
The rapper and cultural figure Diddy (Sean Combs) named his son Christian Casey "Domani" Combs in 2004, bringing the name wider attention in American popular culture. The choice reflected a broader trend of parents selecting Italian vocabulary words — Bella, Vita, Luca — as given names, prizing their musicality and the resonance of a meaning you can explain in one word. Domani sits in a naming category that might be called "aspirational vocabulary names" — names like Haven, Journey, or Legacy that make a statement about what parents wish for their child.
Its Italian origin gives it a warmth that fully English coinages sometimes lack, and its three open vowel-rich syllables (*Do-MA-ni*) give it an innate lyricism. It is the name of a child who is, by definition, the future.