• IPA: /ˈsplɛnɪtɪv/

splenitive

1. (obsolete) splenetic
   • c. 1599–1602, William Shakespeare, “The Tragedie of Hamlet, Prince of Denmarke”, in Mr. William Shakespeares Comedies, Histories, & Tragedies: Published According to the True Originall Copies (First Folio), London: Printed by Isaac Iaggard, and Ed[ward] Blount, published 1623, OCLC 606515358 ↗, [Act V, scene i]:

     For though I am not splenitive and rash,
     Yet have I in me something dangerous

   • Even and smooth as seemed the temperament of the nonchalant, languid Virginian — not splenitive or rash […]