The Greek letter K is named Kappa.
It is thought to have been derived from the Phoenician letter Kaph:
The word Kaph "is thought to have been derived from a pictogram of a hand (in both modern Arabic and modern Hebrew, kaph means palm/grip)".
In Dutch, the verb "kappen" means to chop (wood).
Related is the word "inkeping" (notch).
Also related the heraldic term "keper" (chevron).
K looks more like a notch or chevron, than like a hand.
Earlier I have argued that the Greek word Delta (used for their letter
D) can be explained better through Oldfrisian than by the Greek
See D is for del-ta (in Westfriesland a "delte" still means a piece of low lying land (laagte).
Two Greek letters-names that have a more plausible explanation through the Dutch/ Frisian language, than through Greek.
Isn't that interesting?