Well spotted, a chara !
That is a spelling mistake.
After checking the original text, it should refer to Seoirse (the Irish name for George), so I’ll update the spelling of that now if possible.
Also, Pádraig’s (the native Irish speaker) pronunciation is accurate for this.
The AI for Seoirse is WRONG. You can check in Teanglann and in Abair.
In fact, it doesn’t exactly appear in Teanglann, but you can hear some close variants - Bunachar Foghraíochta: Seoirseach
However, the AI pronunciation for Saoirse (freedom/person’s name) is similar to what you’ll hear in Teanglann - Bunachar Foghraíochta: saoirse, and in Abair: ABAIR
Míle buíochas duit 