English diminutive of John or Jacob, now independent with masculine casual-cool association.
Vibe
boldwarm
How it ages.
Timeless English anchor name; massive 2000s-2020s US surge; now one of top-5 boys names.
The cultural moment.
US peaked 2010-2020 then slight decline; remains top-10; UK shows similar pattern with 5-year lag. Currently ranks #2 in Ireland, #15 in the US and #19 in the UK.