The name Tatiana or Tatiana is widespread among Orthodox peoples, sung in Russian classical literature and associated with the students' holiday. The etymology of this female name is ambiguous.
Roman variant
The first version of the origin of the name Tatiana is a modified male name Tatian, which was worn by Tsar Titus Tatian, who seized the Capitol Hill. This name has no translation, and the beginning of the spread of the male and female versions of this name can be associated with the desire of people to imitate those in power. However, the very fact of the existence of Tsar Titus Tatius is questioned by historians: some researchers are inclined to consider him and his exploits as a legend.
Church tradition connects this name with another legendary Roman woman: Saint Tatiana (Tatiana of Rome), who, centuries later, by chance, became the patroness of students. This noble and pious girl did many good deeds and, thanks to her faith, pacified the hungry lion. Revered as a martyr in Orthodoxy and Catholicism.
Greek version
There is also a more mundane version of the origin of this name, according to which it is not associated with great historical figures, but is derived from the ancient Greek verb "tatto". This word can be translated as "determine", "assign". This means that Tatyana is the sovereign, organizer, founder, or in a slightly different way - appointed, installed.
Slavic motives
The name Tatiana can be seen with the Latin root "tato", which passed into the Old Church Slavonic language meaning "father", "dad". In this case, the name can be translated as father's, father's. It is worth noting here that it was her father who introduced Tatiana of Rome to Christianity.
Sometimes this beautiful name is raised to another Old Church Slavonic word: "thief." It means thief, kidnapper, swindler. But this interpretation is completely wrong. The Proto-Slavic root of the name and the word is most likely the same, but the meaning of "thief" got its meaning much later than the girls began to be called Tatians. In the Church calendar (saints) this name is fixed in memory of the holy martyr and has nothing to do with a "bad word." In addition, in Russia this name was initially widespread not among the people, but among educated, noble people, nobles.