ẹ̀rín noun /ɛ̀.ɾĩ́/
èrín (alternative, Ekiti)
Definitions
  1. smile; grin
  2. laugh; giggling
Etymology
From ẹ̀- (“nominalizing prefix”) + rín (“to smile; to laugh”).
Component words
ẹ̀-nominalizing prefixrínto smile; to laugh
Used in
apanilẹ́rìn-ínbú sẹ́rìn-ínbú sẹ́rìn-ín kèékèéẹlẹ́rìn-ínẹ̀rín àríntàkìtìẹ̀rín ìyàngìẹ̀rín kèékèéintjẹ̀rín kèékèénounẹ̀rín kẹ̀ẹ́kẹ̀ẹ́intjẹ̀rín kẹ̀ẹ́kẹ̀ẹ́nounẹ̀rín múṣẹ́pa lẹ́rìn-ínrẹ́rìn-ínverbrẹ́rìn-ín kèékèé
Source: Wiktionary · etymology 2, where this word is spelled “ẹrin”. Reference: en-ẹrin-yo-noun-Ksj3jRwr