Cillian

The hush of an Irish monastery at early light clings to this name. Cillian comes from the Gaelic ceallach, meaning "church" or "strife" — a twinned etymology that captures something of the Irish character, devotion and argument coexisting in the same breath. The name belonged first to a seventh-century Irish missionary who traveled to Bavaria, was martyred, and was eventually canonized, giving the name a saintly lineage that predates most European naming traditions.

For centuries Cillian remained largely an Irish treasure, appearing on school registers in Munster and Connaught without much ambition to travel. Actor Cillian Murphy — Peaky Blinders, Oppenheimer — changed the geography of the name's appeal, carrying it onto American radar with the kind of quiet intensity the name itself suggests. It now sits at rank 463, still ascending.

Two syllables, the first pronounced KILL- in the Irish manner, give it a sound that surprises American ears pleasantly — familiar in shape, foreign in execution. It fits naturally beside Koda, Tyson, or Uriel, names with their own strong-voweled confidence. The boy named Cillian tends to be watchful in groups and then suddenly the wittiest person in the room, the kind of quality the Irish have historically treated as a birthright.