Sentence:  Commeth he in the morning to do his dutie and bid thee good morrow, belching sowre and smelling strongly of wine, which the day before he drunke at the taverne with companions like himselfe? seeme to know nothing. Senteth he of sweete perfumes and costly pomanders? Hold thy peace and say nothing. These are the means to tame and breake a wilde and <WSD>coltish</WSD> youth. 
Meaning of the word marked with <WSD> tags:  Lively, playful and undisciplined (often in a manner judged to be immature).<ref>B.(nbsp)E., "A New Dictionary of the Canting Crew," London: W. Hawes "et al.," 1699: “Coltish, said when an old Fellow is frolicksom or wanton; or he has a Colt's Tooth.”[http://name.umdl.umich.edu/A39127.0001.001]</ref>