Early Quenya
lamáre
noun. flock
lámarin
noun. flock
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 noun in the Qenya Lexicon of the 1910s glossed “flock” with variants lāmáre and lamárin, based on ᴱQ. lama “head of cattle or sheep” (QL/50). It was first written as lāma, then amended to lāmáre, -in with lámarin written after it. The editors (Gilson, Hostetter, Wynne and Smith) suggested that this likely indicated two forms: lamáre and lámarin.
Neo-Quenya: For purposes of Neo-Eldarin, I would adapt this word as ᴺQ. lamnarë “flock, ✱herd”, based on the later word Q. laman (lamn-) “[tame] animal”, with the same suffix -re. This suggestion came from Röandil in a Discord chat from 2022-03-18.