custos

[kuhs-tos; Latin koo s-tohs] /ˈkʌs tɒs; Latin ˈkʊs toʊs/
noun, plural custodes
[kuh-stoh-deez; Latin koo s-toh-des] /kʌˈstoʊ diz; Latin kʊsˈtoʊ dɛs/ (Show IPA)
1.
(italics) Latin. a custodian.
2.
a superior in the Franciscan order.
Origin
1425-75; late Middle English < Medieval Latin

custos morum

[koo s-tohs moh-roo m; English kuhs-tos mawr-uh m, mohr-] /ˈkʊs toʊs ˈmoʊ rʊm; English ˈkʌs tɒs ˈmɔr əm, ˈmoʊr-/
noun, plural custodes morum
[koo s-toh-des moh-roo m; English kuh-stoh-deez mawr-uh m, mohr-] /kʊsˈtoʊ dɛs ˈmoʊ rʊm; English kʌˈstoʊ diz ˈmɔr əm, ˈmoʊr-/ (Show IPA).
Latin.
1.
a custodian or guardian of morals; censor.
Origin
literally, guardian of established usages, laws, etc.
British Dictionary definitions for custos

custos

/ˈkʌstɒs/
noun (pl) custodes (kʌˈstəʊdiːz)
1.
a superior in the Franciscan religious order Also called (in England) guardian
Word Origin
C15: from Latin: keeper, guard