מִשְׁמָר
From LSJ
ἐς δὲ τὰ ἔσχατα νουσήματα αἱ ἔσχαται θεραπεῖαι ἐς ἀκριβείην, κράτισται → for extreme diseases, extreme methods of cure, as to restriction, are most suitable (Corpus Hippocraticum, Aphorisms 1.6.2)
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.