The Aramaic word niychoach corresponds to the Hebrew nichoach (H5207) and refers to a soothing or pleasing aroma, particularly in the context of sacrificial offerings. It describes the sweet smell that ascends from a burnt offering, symbolizing the acceptance and pleasure of God toward the sacrifice presented before Him.
This Aramaic form appears in the book of Ezra in connection with the restoration of temple worship after the Babylonian exile. The concept of a pleasing aroma before God is foundational to Old Testament sacrificial theology — it represents the reconciliation between God and His people through substitutionary sacrifice. The imagery of a soothing aroma foreshadows the New Testament teaching that Christ offered Himself as a fragrant offering to God (Ephesians 5:2).