strong inclination; liking
Given your penchant for argument, you might well consider a career as a lawyer.
pendere (to hang, weigh) (Latin)
penchant, predilection, proclivity, propensity
p+enchant- something that enchants you, you have a strong liking for that. chant- verses are chanted by sages because they have a strong inclination towards spiritualism. Some fool is chanting his pen because he likes it so much.