The Collaborative International Dictionary of English v.0.48:

Teeny \Tee"ny\, a.
   Very small; tiny. [Colloq.]
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Teeny \Teen"y\, a. [See Teen grief.]
   Fretful; peevish; pettish; cross. [Prov. Eng.]
   [1913 Webster]

WordNet (r) 3.0 (2006):

teeny
    adj 1: (used informally) very small; "a wee tot" [syn: bitty,
           bittie, teensy, teentsy, teeny, wee, weeny,
           weensy, teensy-weensy, teeny-weeny, itty-bitty,
           itsy-bitsy]