It was very hard to find the meaning of "Dettol" an antiseptic liquid. after deep thinking I came to conclusion as follow:
"Dettol" name has three fragment.
1: DE: Meaning of "de" is "to remove". I think it is tell about removing bacteria from body.
2: TT: It made by "Recktt Benckiser" it may be possible that "tt" comes from the last two letters of the name "Recktt"
3: OL: It comes from the last two letter of its main ingredient named "Chloroxylenol"
I don't know weather this meaning is right or wrong but my logic says that it is probably true.