èérú noun /èé.ɾú/
èrúrú (alternative), èrírú (alternative), erírú (alternative), erúrú (alternative)
Definitions
  1. scum, filth, or impurities on liquid
Etymology
Contraction of èrírú.
Source: Wiktionary · etymology 4, where this word is spelled “eeru”. Reference: en-eeru-yo-noun-cMKfyTGD