tannátanná noun /tã̄.nã́.tã̄.nã́/
Definitions
  1. firefly
Etymology
Reduplication of tanná (“to turn on light, fire”), literally "light switcher"
Component words
tannáto turn on light, fire
Source: Wiktionary, where this word is spelled “tannatanna”. Reference: en-tannatanna-yo-noun-r6wyfnNp