The modern Greek word "Φίλιππος" (FEE-leep-pos) ≈ "Philip" as a name is, literally, a "lover of horses". This name was popular in Bible times. There is more happening here that is interesting.

• The modern Greek word "φίλος" (FEE-los) ≈ "friend, affection, love". The English word "philanthropy" is an "affection or love for man", "Philadelphia" is the "friendship of brothers" or "brotherly love".
• The modern Greek word "άλογο" (A-lo-go) ≈ "horse" as used in 2 Peter and Jude to refer to "brute beasts" which were actually magnificent war horses.

The modern Greek word "άλογο" (A-lo-go) ≈ "horse", in ancient times, came from the phrase "άλογο ζώα" (A-lo-go ZO-a) ≈ "unspeaking/unthinking animal" and usually referred to a war horse (e.g., pulling a chariot, used in a mounted calvary attack, etc.). These were magnificent animals, trained to do whatever they were led to do by their rider/master - even to their own destruction.

The Greek for "ass" is that of a pack animal doing work. The translators used the OT (Old Testament) word rather than the word Peter wrote and appeared to mean to keep the military animal analogy consistent and meaningful.

More: Brute beasts and magnificent war horses