途轍もない[totetsumonai] extravagant
転轍[tentetsu] switching or shunting (of a rail car)
転轍手[tentetsushu] switchman
転轍機[tentetsuki] switch (of a railroad)
轍叉[tessa] railway frog

前轍[zentetsu] wheel tracks left by vehicles that have passed before
轍を踏む[tetsuwofumu] to repeat a mistake (of somebody)
前車の轍を踏む[zenshanotetsuwofumu] to repeat the mistake of somebody
前轍を踏む[zentetsuwofumu] to repeat the mistake of somebody

途轍もない[totetsumonai] extravagant
一途[itto] way
一途に[ichizuni] wholeheartedly
開発途上国[kaihatsutojoukoku] developing country
帰途[kito] on the way back

三途の河[sanzunokawa] Sanzu River (Buddhist equivalent of the River Styx)
使途[shito] purpose for which money is spent
世途[seito] the world
先途[sendo] crisis in a battle
前途[zento] future prospects