A neologism for “police officer, policeman” coined by Luinyelle posted on 2025-08-06 in the Vinyë Lambengolmor Discord Server (VLDS), a combination of [ᴹQ.] sanye “law” and ᴹ✶tirnō̆ “watcher”.
Quenya 
sanyë
rule, law
sanyetirno
noun. police officer, policeman, (lit.) law-watcher
sanyelóra
adjective. lawless
sanyengolmo
noun. lawyer
sanyesta
noun. law [as a scholarly discipline]
sanyelórie
noun. lawlessness
cunta
rule
cunta, also cunya, vb. (or less likely noun) "rule" (PE17:117)
heru-
verb. to rule
heru- vb. "to rule" (LT1:272; rather tur- in LotR-style Quenya)
vala-
verb. to rule
vala- (2) vb. "to rule", only with reference to the Valar (see Vala). Future tense valuva is attested (WJ:404)
vard-
verb. rule, govern
vard- vb. "rule, govern" (LT1:273; hardly valid in Tolkien's later Quenya)
sanyë (þ) noun "rule, law" (STAN)