tightum

alternative titum

1. obsoleteslanguncountableModerately formal attire or dress code

   The second was of very respectable form and kind, and fitted for ordinary society; this she called "Titum."

   1876, “Hightum, Titum, and Scrub!”, in The Leisure Hour

   2 more examples

   He knew that he had put out the usher's very best suit; not the tightum which he wore on Sundays; but the hightum,[…]

   1842, Mary Martha, Robert and Frederick

   For one of Lucia's quaint ideas was to divide dresses into three classes, "Hightum," "Tightum" and "Scrub."

   1920, E. F. Benson, Queen Lucia

   Synonyms: black tie