The analysis of the oldest written Podravina toponyms, mostly place-names, in general confirms the existing knowledge and theories on Kajkavian dialect of that area. - basically there are no records on accentuation. - Jat and semivowels were leveled on the turn of 15th to 16th century, and until the transition separate phonology units had been in use; continuance of jat is unaspirated e, which in the second syllable can also be a diphthong, more often an ascending diphthong (ie), or a descending one (ei), which is less often; continuance of semivowel serves as a central value of close vowel, šva (D). Semivowel is assimilated with jat at jat continuance value; transient speech around the town of Nasice, influenced by newly acquired neo-štokavian forms assimilates semivowel with a, jat-continuance with continuance e= ę (however, certain settlements around Nasice optionally keep a separate phonology unit instead of jat). - records show a continuous keeping of syllable-forming l (lu) as a special phoneme and special phonology unit in the place of back nasal, valued as a vowel between o and u - closed o (o|) until 15th century; as for the lu grapheme, sometimes it refers to scribe traditions. Since assimilation of continuances in back nasal vowels and syllable-forming l , the written forms confirm that their continuances had special phonology values everywhere in 17th/18th century; later, it was assimilated either with an old variant o , or with u. Today, there is no special phoneme in Podravina, as its continuance; however, we find those in the neighboring regions: Varazdin, Kalnik or Moslavina. - found written documents indicate there was an early generalization of suffixes with o as well as with the words with suffixes e, since the beginning of 14th century. lz. forms indicating de-palatalization are found since 18th century; even today situation is different in certain kajkavian dialects.