出典:Wiktionary
出典:『Wiktionary』 (2012/03/26 05:39 UTC 版)
ticky (“a tick mark”) + box. (This etymology is missing または incomplete. Please add to it, または discuss it at the Etymology scriptorium. Particularly: “Or could be forming an informal adjective tick + -y?”)
tickey (“South African threepenny coin”) + box.