Beware, older languages below! The languages below were invented during Tolkien's earlier period and should be used with caution. Remember to never, ever mix words from different languages!
alas
noun. marble
alaswa
adjective. like marble
A word in the Qenya Lexicon of the 1910s with variations alaswa, alakse, alaska glossed “like marble”, an adjectival form of ᴱQ. alas (alast-) “marble” (QL/30).
Neo-Quenya: I see no straightforward way of adapting any of these forms to Neo-Quenya, so I stick to ᴺQ. alasta as the adjectival form of “marble” instead.
alasta
adjective. of marble, marble
alakse
adjective. like marble
alaska
adjective. like marble
isqa
adjective. wise
iswa
adjective. wise
qolda
adjective. ill
The Qenya Lexicon of the 1910s had several similar adjectives under the early root ᴱ√QOLO: ᴱQ. qolda or qolina “ill” and ᴱQ. qolima “sickly, ailing” (QL/78).
Neo-Quenya: I’d adopt ᴺQ. quolina for all these meanings: “ill, sickly, ailing”. I would further assume it applies to any kind of physical ailment, including injury. For someone sick specifically by disease I would use [ᴺQ.] hlaiwa. Not all Neo-Quenya writers accept quo- as a valid combination; see the entry on how [[q|[wo] became [o]]] for further discussion.
qolina
adjective. ill
rista-
verb. to plant
A verb in the Qenya Lexicon of the 1910s glossed “plant” under the early root ᴱ√RIẎI “scatter” (QL/80).
áye
interjection. hail
A noun appearing as ᴱQ. alas (alast-) “marble” in the Qenya Lexicon of the 1910s derived from primitive ᴱ✶ʒalast- (QL/30).
Neo-Quenya: I think this word may be salvageable in Neo-Quenya as ᴺQ. alas, reconceived as a derivative of ᴹ√GALAS “joy, be glad”, perhaps from ᴺ✶galast- originally with the sense “thing pleasant to touch”.