the.com/benediction

A blessing aimed like a verbal arrow at someone walking out the door.

means A blessing or expression of good wishes spoken over someone, traditionally the formal blessing that closes a religious service.

from Straight from Latin: bene ('well') plus dicere ('to speak'), giving benedictio — literally 'a speaking-well-of.' The same dicere that gives us 'diction,' 'dictate,' and 'verdict' sits at its heart, so a benediction is, at root, just good words said well. It reached English through Church Latin, where it named the priest's parting blessing — and its dark twin, malediction, is built the same way from malus, 'bad.'

latin roots
From bene dicere, literally to speak well
final word
Traditionally the last line of a church service
opposite twin
Malediction is the same word turned to curse
poetry use
Poets borrow it to bless ordinary endings
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