Polonija
poh-LOH-nee-yah
A Slavic form connected in older name books with Apollo, and also treated as a local variant of Polona/Abellona.
Meaning
In the excerpted 19th-century name books, Polonija is given as a Slovene/Slavic form and linked to the Greek Apollo tradition. The books also connect it with Polona and the Scandinavian Abellona, suggesting a regional name family rather than a single, fully settled etymology. Because the sources are OCR-noisy and a bit compressed, the safest reading is that it is a Slavic form associated with Apollo in those reference works.
Origin
SloveneSlavicGreekfeminine
Fun fact
One of the excerpts notes that Slovaks use the form Polonija or Polona, showing how names often travel and shift shape across languages.
Confidence: mixed. Sources: History of Christian Names, Girls' Names and Name-Day and Birthday Book.