Whether the orders of the angels are properly named?

Objections

Objection 1 : It would seem that the orders of the angels are not properly named. For all the heavenly spirits are called angels and heavenly virtues. But common names should not be appropriated to individuals. Therefore the orders of the angels and virtues are ineptly named.
Objection 2 : Further, it belongs to God alone to be Lord, according to the words, "Know ye that the Lord He is God" (Ps. 99:3). Therefore one order of the heavenly spirits is not properly called "Dominations."
Objection 3 : Further, the name "Domination" seems to imply government and likewise the names "Principalities" and "Powers." Therefore these three names do not seem to be properly applied to three orders.
Objection 4 : Further, archangels are as it were angel princes. Therefore this name ought not to be given to any other order than to the "Principalities."
Objection 5 : Further, the name "Seraphim" is derived from ardor, which pertains to charity; and the name "Cherubim" from knowledge. But charity and knowledge are gifts common to all the angels. Therefore they ought not to be names of any particular orders.
Objection 6 : Further, Thrones are seats. But from the fact that God knows and loves the rational creature He is said to sit within it. Therefore there ought not to be any order of "Thrones" besides the "Cherubim" and "Seraphim." Therefore it appears that the orders of angels are not properly styled.