How do you spell Hannukah?
"to slope, overturn," c.1300, possibly from Scandinavian, or a special use of tip (n.). Intransitive sense of "fall over" is recorded from 1520s. Related: Tipped; tipping. Tipping point attested by 1972.
"give a small present of money to," c.1600, "to give, hand, pass," originally thieves' cant, perhaps from tip (v.3) "to tap." The meaning "give a gratuity to" is first attested 1706. The noun in this sense is from 1755; the meaning "piece of confidential information" is from 1845; the verb in this sense is from 1883; tipster first recorded 1862. For urban legendary origin as an acronym, see here.
"end, point, top," early 13c., from Middle Low German or Middle Dutch tip "utmost point, extremity, tip" (cf. German zipfel, a diminutive formation); perhaps cognate with Old English tæppa "stopper" (see tap (n.)), from Proto-Germanic *tupp- "upper extremity." Tip-top is from 1702.
Gaudy; coruscating but insubstantial; flashy: tinselly telecasts from CBS in Los Angeles (1811+)