tisick, tisical, (tiss-)obs. and dial. forms of phthisic, -al. Hence tis(s)ickinga.= next; † tisickness, phthisic or asthmatic quality.1533Elyot Cast. Helthe (1539) 82 Tisiknesse or shortnesse of breth.a1825Forby Voc. E. Anglia, Tissick,..a tickling faint cough; called also a ‘tissicky cough’.1888Doughty Arabia Deserta II. 521 The Sherif visited Beyrût some years ago..for the health of a tisical son.1890Blackw. Mag. CXLVIII. 463/2 Snipe hummed and bleated out a tissicking music.1904in Eng.Dial.Dict.s.v.Tissick, etc.