I have seen many memes on the internet stating that through linguistic mutations (from Aramaic to Greek, Greek to Classical Latin, Classical Latin to Medieval Latin, Medieval Latin to English) Jesus's name has changed from Joshua the Messiah to Jesus Christ. Is there any evidence that this is true?
The name Jesus (ישוע) is Hebrew and is a hypocoristic form of the name Joshua (יהושוע). This means that part of the name was taken off. Joshua means "Yahweh Saves." It's a combination of "Yeho" (יהו) or a shortened form of Yahweh and "Yeshua" which means salvation. The name Jesus is just the salvation part.
Messiah is also a Hebrew word (משיח) which means "anointed one." Royalty of the region were anointed with oil when crowned and this title shows reverence for Jesus as the King.
The Greek word Christ or Cristos (Χριστός) is a direct translation of Messiah. So they are the same idea in two languages.
Edit: Source: I'm a scholar in Ancient Near Eastern Studies Edit 2: Changing the term "Jehovah" to the Tetragrammaton for accuracy. Jehovah was a later understanding of the name.