You gotta love a full blog post dedicated to the word fuck.
So here you go:
There are lots of instances of the word fuck from before the fifteenth century drifting around, some of the most notable of which are, chronologically:
John Le Fucker (supposedly from 1278) – While excellent, this name is probably apocryphal. Since it was first written about no-one’s been able to find it and it’s generally assumed to be a mis-reading, perhaps of Tucker, or a variant on fulcher, meaning ‘soldier’. Disappointing.
Fuckebegger (1286/7) it appears as part of the surname of one of Edward I’s palfreymen. Marc Morris posted this excellent photo on Twitter:
However, this is generally assumed to mean ‘to strike’ and can be compared with the Anglo-Norman surname Butevilein meaning ‘to strike the churl or wretch’ (‘vilein’ being related to the English villain which originally meant a person of a lower status).
Read the full text here.