11We count blessed those who endured. You have heard of the endurance of Job and have seen the outcome of the Lord’s dealings, that the Lord is full of compassion and is merciful. (NASB)
It's use is not unique to Mary.
The verb, μακαρίζω (makarizó) conveys the meaning of: pronounce blessed, as the result of enjoying the benefits (privileges) that (literally) extend from God. See 3107 (makarios).http://biblehub.com/greek/3106.htm
I never said "Blessed" is unique to Mary.
It seems you find the term "Blessed" to be of wide applicability, Excellent! How very Catholic!
Here's a list of approx. 750 "offical" "blesseds" in the Catholic Church (These are people who have been officially beatified (Link) It's definitely worth a click, because each name is hyperlinked to a short article which tells his/her story. They range from about the 6th century to the late 20th century.
This does not include the canonized saints (of whom there are thousands) or angels (of whom there are "myriads") or people who are in heaven but have received no especial recognition. This latter number will ultimately be "countless":
Revelation 7:9
After this I looked, and there before me was a great multitude that no one could count, from every nation, tribe, people and language, standing before the throne and before the Lamb. They were wearing white robes and were holding palm branches in their hands.
You too --- I hope --- Blessed Ealgeone.