This may help a bit.
From: "Manual of Foreign Languages"; Geo. F. von Ostermann; Central Book Co.,Inc., 1952.
"This language sharply reflects the history of the Roumanian people. The basis of the language is a vulgate Latin, introduced by Trajans's legions when they occupied Dacia 101-107 A.D.
In the sixth century, however, the Slavs and the Bulgarians made conquests, and their influence bore heavily on the language, altering sounds, introducing novel forms, and in other ways affecting the composition and derivation of the vocabulary; thus the Latin dis- was displaced by the Slavonic ragu-, the nagative in- by the corresponding Slavonic ne-, etc.
In later years, the Albanians, Byzantines, Hungarians, Poles, and Turks, people with whom they lived on friendly or hostile terms also impregnated the language with word forms from their own stock, so that the language acquired characteristics that distinguish it from the other Romance languages.
The orthography also has undergone a number of successive changes beginning with 1866, when the Roumanian Academy was first established. Other radical changes were made in 1869, 1879, 1881, 1895, and finally in 1904, the Academy abandoned the etymological principles based on Latin orthography and adopted the phonetic principles in use today."