Dédes comes from a Slavic personal name Deduš derived from dědъ. Dedus (1240).
Tapolcsány comes from Slovak/Slavic Topoľčany (Slovak: topoľ - poplar tree, see also Topoľčany) or Tepličany (hot spring or stream, see also Tepličany, now a part of Družstevná pri Hornáde). Tapolchan (1438).
