[this.tle] n [ME thistel, fr. OE; akin to OHG distill thistle] (bef. 12c): any of various prickly composite plants (esp. genera Carduus, Cirsium, and Onopordum) with often showy heads of mostly tubular flowers; also: any of various other prickly plants -- this.tly adj
THISTLE
Meaning of THISTLE in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012