A title for the race of men as the children of Êru “God” (SD/247). It is only attested in the plural Êruhîn (SD/311, 358) and subjective plural Êruhînim (SD/247-8) forms “Children of God”.
Conceptual Development: This name first appeared as Eruhil(di) (SD/341, 399), probably incorporating ᴹQ. hilde “men”. In these early appearances Tolkien may have conceived of this as a Quenya word before introducing its Adûnaic form Êruhîn. In its early appearances the latter name sometimes had a short initial E: Eruhîn (SD/358), possibly another transitional form resembling later Sindarin Eruchîn. In still later writings, Tolkien coined a Quenya word Q. Eruhin of the similar meaning, encompassing both Men and Elves.
A name for Elves and Men as children of Eru (God), frequently appearing in its plural form Eruhíni (Let/189, MR/320, WJ/403). It is a compound of Eru “God” and a suffixal form -hin of hína “child” (SA/híni).
Conceptual Development: This name first appeared in the tales of the Fall of Númenor from the 1940s as the Adûnaic word #Êruhin, attested only in its plural forms Êruhîn(im) (SD/247-8, 311). See that entry for further discussion of its early history.