Webster's Revised Unabridged Dictionary · 1913

Hallow

Hallow (hal"lo) , transitive verb

[Old English halowen, halwien, halgien, Anglo-Saxon hālgian, from hālig holy. See Holy.]

To make holy; to set apart for holy or religious use; to consecrate; to treat or keep as sacred; to reverence.
Hallowed be thy name. — Matt. vi. 9
Hallow the Sabbath day, to do no work therein. — Jer. xvii. 24
His secret altar touched with hallowed fire. — Milton
In a larger sense... we can not hallow this ground [Gettysburg]. — A. Lincoln