מִשְׁמָר
From LSJ
Πονηρὸν ἄνδρα μηδέποτε ποιοῦ φίλον (μηδέπω κτήσῃ φίλον) → Tibi numquam amicum facito moratum male → Nimm niemals einen schlechten Mann zum Freunde dir
English (Strong)
from שָׁמַר; a guard (the man, the post or the prison); a deposit (fig.); also (as observed) a usage (abstr.), or an example (concr.): diligence, guard, office, prison, ward, watch.