Philip

It derives from two Greek components: ΦΙΛΟΣ-ΙΠΠΟΣ = friend-horse.
Consequently the right spelling is: single L and double P.
The most fame person in history with this name was the father of Alexander the Great ca. 350 BC.

Can be shortened to 'Pip', 'Phil' or back to the greek word that forms the first part of the name 'Philo'. This means 'Love' but can also be translated as 'friend' as there are 4 different words for love in Old Testament Greek and 'Philo' denotes the love between friends rather than anything sexual. Should most accurately be spelt with only one 'l' but some use two.