Θῶνις
Could not find Θῶνίν in Logeion dictionaries.
Θῶνίν Proper-name noun: masculine accusative singular of Θῶνις
Θῶνις — Thonis (Egypt), Pleiades 727250
Θῶνις, ιδος, acc. -ιν (ὁ) Thônis, roi d’Égypte, Hdt. 2, 114, 115 ; El. N.A. 9, 21 ; 15, 13.