Wiktionary
thons
a. (context neologism archaic English) Belonging to thon, their (qualifier: singular). {{non-gloss definition|gender-neutral third-person singular possessive adjective, coordinate with (term: his) and (term: her).}}
Usage examples of "thons".
Blue-hive, she heard, skirmished with the others and retreated, sealed into its hill again, while reds came and went where they would: Thons came from Cerdin to try to persuade them back into quiet.
And any visiting thons from other principalities can have a look at them too.