Some Kajkavian words bear a closer resemblance to other Slavic languages such as Russian than they do to Shtokavian or Chakavian. For instance "gda" (also seen as shorter "da") seems to be at first glance unrelated to "kada", however when compared to Russian "когда", Slovene "kdaj", or Prekmurje Slovene "gda", "kda", the relationship becomes apparent. Kajkavian "kak" ("how") and "tak" ("so") are exactly like their Russian cognates and Prekmurje Slovene compared to Shtokavian, Chakavian, and standard Slovene "kako" and "tako". (This vowel loss occurred in most other Slavic languages; Shtokavian is a notable exception, whereas the same feature in Macedonian is probably not due to Serbo-Croatian influence because the word is preserved in the same form in Bulgarian, to which Macedonian is much more closely related than to Serbo-Croatian.)