Early Quenya
honde
noun. heart
hondo
noun. heart
hon
noun. stone, rock
hon
noun. heart
elben
noun. heart
elwen
noun. heart
londa
noun. heart
ondo
noun. stone, rock
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 word appearing as ᴱQ. Elben “heart” in the Name-list to the Fall of Gondolin of the 1910s (LT2/202; PE15/23), but as ᴱQ. Elwen “heart” in the contemporaneous Qenya Lexicon under the early root ᴱ√LEFE (QL/35, 52). These words were connected to the character G. Elfrith who vanished from later versions of the legendarium.