Early Primitive Elvish
iři
root. dwell‽
iri Reconstructed
root. wish, intend
iði
root. dwell‽
There are more words but they are from Tolkien's earlier conceptional periods. Tolkien likely changed these words as he evolved the aesthetics and completeness of the languages. You may even find languages that Tolkien later rejected. Do not mix words from different time periods unless you are familiar with the phonetic developments.
Below: Tolkien's Late Period (1950–1973). These are from Tolkien's late conceptual period — his most settled forms of the languages. Prefer these over the earlier ones above when composing new text.
A root in the Qenya and Gnomish Lexicons given as ᴱ√IŘI (QL/43) and iđ- (GL/50), the latter more representative of its true form. In the Qenya Lexicon it was glossed “dwell”, but Tolkien marked this gloss with a “?”. It had derivatives like ᴱQ. indo/G. ind “house”, ᴱQ. irmin/G. Idhru “world”, and ᴱQ. Indi/G. idhrin “men, earth dwellers”. Based on the last of these, a probable variant is the deleted root ᴱ√(I)LÐ(I)L, also in the Qenya Lexicon with the (rejected) derivative ᴱQ. ildi “men” (QL/42).
There are no signs of this root in Tolkien’s later writing, and both “men” and “world” were generally derived from other roots, the latter from √MBAR “dwell”, the likeliest replacement for this root.