The Hebrew achalay (אַחֲלַי) is an exclamation of wishing or longing — 'Oh that it were so!' or 'Would that!' It also appears as a personal name (1 Chronicles 2:31). As an interjection, it expresses heartfelt desire or yearning.
The interjection achalay captures the heart's cry of longing — the same posture found throughout the Psalms in words like 'How long, O LORD?' It appears in 2 Kings 5:3 in the lips of a captive servant girl who longs for Naaman's healing — a remarkable moment where faith and compassion overflow in longing for God to act. The word embodies the prophetic yearning for redemption that runs through all Scripture.