Install fonts-sil-galatia by entering the following commands in the terminal:
sudo apt update sudo apt install fonts-sil-galatia
Description:
font family for Latin-1 and Greek (polytonic support)
The Galatia SIL Greek Unicode Fonts are a new version of the SIL Galatia font released by SIL in 1997. . The Latin-1 codepage ("A-Z", "a-z" plus some punctuation, etc.) is included in the font. This is to assist with viewing Latin or Roman text. The Macintosh character set for US Roman and the 850 WE/Latin-1 encodings are also included. . Polytonic Greek is supported but Coptic is not. There is no automatic formation of the final sigma.
Homepage: http://scripts.sil.org/SILgrkuni
Version: 2.1-5
Section: universe/fonts