φρουρεῖν
From LSJ
οὐ καταισχυνῶ τὰ ὅπλα τὰ ἱερά → I will never bring reproach upon my hallowed arms
Greek > English (Woodhouse Verbs Reversed)
(see also φρουρέω): guard, protect, watch, be on the look out, keep watch
Lexicon Thucydideum
praesidio esse, to protect, 1.64.1, 1.64.11.103.4. 2.80.4, 2.83.1. 3.17.3, 3.90.2. 4.1.4, 4.24.1. 4.66.4. 4.113.2. 5.33.1. 5.33.2. 5.35.6, 5.39.1. 5.64.3, 7.4.3. 7.24.1. 7.60.2. 8.35.3. 8.74.2.