(archaic) Simple past tense and past participle of pay is Payed though paid is widely used nowadays
1616 William Shakespeare, Last will and testament
...and the use and proffitt therof cominge shalbe payed to my saied Sister Jone...
1836 Frederick Marryat, Mr. Midshipman Easy, ch 25
It was but just in time, for, as the frigate flew round, describing a circle, as she PAYED off before the wind, they could perceive the breakers lashing the precipitous coast, not two cables' length from them.