Sackbut – an early form of trombone used in Renaissance music.
Labefy – to weaken or impair.
Jacinth – a reddish-orange gem variety of zircon; a gem more nearly orange in colour than a hyacinth.
Galactophagist – one who drinks, or subsists on, milk; milk drinker.
Siffilate – to whisper.
Slatch – a calm between breaking waves; area of quiet water between two breaking waves; a transitory breeze or its duration; an interval of fair weather; the loose or slack part of a rope.
Agonistarch – one who trained people to compete in public games and contests in Ancient Greece.