Nova

In 1572 the Danish astronomer Tycho Brahe watched a new star flare into the constellation Cassiopeia, brighter than Venus, and he coined a Latin phrase for it: stella nova, "new star." Four and a half centuries later, parents borrowed the adjective alone. Nova is Latin for "new" and also the name astronomers still give to a star that suddenly brightens — the name carries both newness and fire. It arrived in the American charts only in the 2010s and now sits at rank 39. Two syllables, open and luminous. Unisex, slightly futuristic, and built for a child you suspect will not be quiet.