[The_Reader_David]

Actually, in English usage, 'priest' is used for what in Greek is called 'presbyter'. So, for example, the honorific for senior married presbyters (or, by your leave, since we don't speak Greek, priests), Protopresbyter, is Englished as Archpriest, and even in English translations of the Liturgy, one finds prayers for "the presbytery, the diaconate and all the clergy and the people" just after prayers for the bishop.

'Elder' is a more imprecise translation, since it would more naturally correspond to 'geron', than to 'presbyteros', and 'bishop' would correspond to 'episcopos', so the most accurate translation into English for the word St. Paul used in writing to Titus is 'priest', since that is the English word which applies to the office called 'presbyteros' in Greek.

[HarleyD]

Actually, in English usage, 'priest' is used for what in Greek is called 'presbyter'. ...'Elder' is a more imprecise translation

Based upon your analysis you would have a very difficult time translating the following:

Mat 26:3 Then assembled together the chief priests and the scribes, and the elders of the people, unto the palace of the high priest, who was called Caiaphas,

The word "priest" here is written as archiereus. The word "elder" is written as presbuteros, the same word as used in Titus 1:5. I might not be a Greek scholar but I can recognize that different words are being used and different classes of people being assembled.