matin

from The American Heritage® Dictionary of the English Language, 5th Edition.

• adjective Of or relating to matins or to the early part of the day.

from The Century Dictionary.

• noun Morning.
• noun plural One of the canonical hours appointed in the early church, and still observed in the Roman Catholic Church, especially in monastic orders.
• noun Morning worship, as sung; hence, any morning song: usually in the plural.
• noun plural A musical setting of any part of the office of matins.
• Pertaining to the morning; used in the morning.
• noun A French breed of large dogs, somewhat resembling the great Dane, but rough-coated; also used to some extent for sheep-dogs. Also mâtin-dog.

from the GNU version of the Collaborative International Dictionary of English.

• adjective Of or pertaining to the morning, or to matins; used in the morning; matutinal.
• noun obsolete Morning.
• noun Morning worship or service; morning prayers or songs.
• noun Time of morning service; the first canonical hour in the Roman Catholic Church.
• noun (Zoöl.) A French mastiff.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• adjective of or relating to matins