Why this word is great
VALEDICTORY — [Adjective, Noun] Pertaining to or constituting a formal farewell, especially the closing address delivered at a graduation. From Latin valedictum (past participle of valedicere, "to say farewell"), from valē (imperative of valēre, "to be well, be strong") + dīcere ("to say"), combined with the English suffix -ory ("of or pertaining to"). Unlike a salutatory, which inaugurates a ceremony with welcome, or a eulogy, which praises a life conclusively past, the valedictory occupies the liminal space of a conscious, ceremonial parting. It is the slant of late-afternoon light across an emptying auditorium, the final suitcase snapped shut on a dormitory bed, the weight of a rented gown returned damp from an evening's dew—a ritualized goodbye that turns the strength of its etymology into the very substance of its farewell, a formal articulation of an ending that is always, quietly, a wish for strength in whatever comes next.