Early Quenya
haru
noun. grandfather
sorta-
verb. to sit down
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.
haru
noun. grandfather
sorta-
verb. to sit down
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 word for “grandfather” of unclear derivation appearing as ᴱQ. haru in both the Qenya Lexicon and Poetic and Mythological Words of Eldarissa of the 1910s (QL/39; PME/39). As there are no other alternatives, I would retain ᴺQ. haru for purposes of Neo-Quenya.