ὀπισθοδάκτυλος
From LSJ
τὰ σῦκα σῦκα, τὴν σκάφην δὲ σκάφην ὀνομάζειν → call a spade a spade | speak the truth | speak straight from the shoulder | give it straight from the shoulder | give the straight goods | not to mince matters | not to mince words | not mince words | call things by their right names | call a spade a spade and a shovel a shovel | call a shovel a shovel | call a spade a spade, not a big spoon
English (LSJ)
ον,
A with fingers bent backwards, Str.2.1.9.
German (Pape)
[Seite 358] mit zurückgebogenen Fingern, Strab. 2, 1, 9, als fabelhaftes Volk.