- Original: δυς - Transliteration: Dus- - Phonetic: doos - Definition: 1. prefix conveying the idea of difficulty, opposition, injuriousness, similar to our mis- or un- prefixes - Origin: a primary inseparable particle of uncertain derivation - TDNT entry: None - Part(s) of speech: - Strong's: A primary inseparable particle of uncertain derivation; used only in composition as a prefix; hard that is with difficulty: - + hard + grievous etc.