Armiger

(n.) Formerly, an armor bearer, as of a knight, an esquire who bore his shield and rendered other services. In later use, one next in degree to a knight, and entitled to armorial bearings. The term is now superseded by esquire.

Thesaurus Entries

Brahman, archduke, armiger, baron, baronet, blue blood, count, daimio, duke, earl, esquire, gentleman, grand duke, grandee, hidalgo, lace-curtain, laird, landgrave, lord, lordling, magnate, magnifico, margrave, marquis, noble, nobleman, optimate, palsgrave, patrician, peer, seigneur, seignior, silk-stocking, squire, swell, thoroughbred, upper-cruster, viscount, waldgrave