In Quenya, her name is Irime. Lalwende means
Third child of Finwe and Indis.
Went into exile with Fingolfin who was dear to her.
Reference: "The Shibboleth of Feanor" in The Peoples of Middle
is Vol 12 of The History of Middle Earth
May 6, 2005
Irime, ( correctly = Írimë ) and her older sister Findis appear in the chapter "The Shibboleth of Fëanor" in Peoples of Middle-earth page 343 and notes p.359.
Findis was the first daughter of Finwë and Indis, who had Finarfin, Írimë, and Fingolfin in that order. Basically in the same paragraph Írimë is renamed to Írien with the mothername Lalwendë nicknamed Lalwen.
She went into exile with Fingolfin.
Reference: "The Shibboleth of Fëanor" in Peoples of Middle-earth
page 343 and notes p.359.