In old France, which was known as the Gaul, people had found out that letting some foods age would allow them to become more delightful. The French called this newly discovered phenomenon, the Saisonner. After being conquered by the Normans, the British took some of their words such Saisonner which became to be known as the seasoning process. When the crusaders came back from the crusade around the 13th from the mid east, they brought spices with them. So seasoning just took the meaning of anything that modifies tastes.
Did you know how the church recruited so many soldiers, most weren’t even trained but because the church promised them their past sins were to be forgiven.