Where does “итер” come from?

итер (Macedonian) comes from Proto-Slavic xytrъ, from Proto-Slavic -rъ, from Proto-Indo-European -rós — Forms adjectives from Caland system roots.

Ancestry of “итер”, step by step

StepLanguageWordMeaning
1Proto-Slavicxytrъcunning, sly, wise
2Proto-Slavic-rъFrom intransitive verbs or basic 0-grade stems,...
3Proto-Indo-European-rósForms adjectives from Caland system roots
Every word from Proto-Indo-European -rós →Every word from Proto-Slavic -rъ →Every word from Proto-Slavic xytrъ →