erín noun /ē.ɾĩ́/
Definitions
  1. The plant Hunteria umbellata, traditionally used to make arrow poison and used in traditional medicine
Other entries with this spelling
Wiktionary records 2 entries spelled “erín”. You're reading one of them; here are the others.
Source: Wiktionary · etymology 4, where this word is spelled “erin”. Reference: en-erin-yo-noun-jXH8Ds38