'Svedka' in Slovak language means witness.
Slovak language, according to Slovak-Republic.org is an Indo-European language used in Slovak Republic, Czech Republic, USA and in other countries (almost 6 million people).
Slovak belongs to a large family of Slavic (Slavonic) languages (subgroup of Indo-European languages):
West Slavs: Slovak, Czech, Upper & Lower Sorbian (minority languages in Germany), Polish
East Slavs: Russian, Ukrainian, Belarusian, Rusyn
South Slavs: Serbian, Croatian, Slovene, Bosnian, Bulgarian, Macedonian
Czechs and Slovaks can easily understand each other. Polish is also very similar to Slovak, some words can be understood by slovaks.
To learn to speak the Slovak language, see a handful Slovak-English dictionary at Slovak-Republic.org.
Tip! Learn basic conversation words and phrases that should give you overview of Slovak language and help you on your trips to Slovakia at Bratislava Guide.