One who carried a warrior’s armor or weapons; a squire.

1

1611.  Bible, 1 Sam. xiv. 14. That first slaughter which Jonathan and his armour-bearer made [Wyclif, squyer; Coverdale, wapen bearer].

2

1772.  Pennant, Tours Scotl. (1774), 296. Each chieftain had his armour-bearer.

3

1870.  Bryant, Homer, I. X. 305. Meriones, The armor-bearer of Idomeneus.

4