lathron (hearer, eavesdropper), pl. lethryn, coll. pl. lathronnath. This is a masc. form, corresponding to fem. lethril (VT45:26), no distinct pl. form, but coll. pl. lethrillath.
Quenya
larmo
noun. listener
hlarindo
noun. hearer
Elements
Word Gloss hlar- “to hear”
TQ. listener (spy or scout)