tipstaff (n.)youdaoicibaDictYouDict[tipstaff 词源字典]
1540s, "tipped staff" (truncheon with a tip or cap of metal) carried as an emblem of office, from tip (n.) + staff (n.). As the name of an official who carries one (especially a sheriff's officer, bailiff, constable, court crier, etc.) it is recorded from 1560s.[tipstaff etymology, tipstaff origin, 英语词源]
tipster (n.)youdaoicibaDictYouDict
"one who provides private information," 1862, from tip (v.2) + -ster.
tipsy (adj.)youdaoicibaDictYouDict
1570s, from tip (v.1); compare drowsy, flimsy, tricksy. Later associated with tipple. Tipsy-cake (1806) was stale cake saturated with wine or liquor.