Scent: late 14th century, sent "to find the scent of," from Old French sentir "to feel, smell, touch, taste; realize, perceive; make love to," from Latin sentire " to feel, perceive, sense, discern, hear, see". Originally a hunting term. The c appeared 17th century, perhaps by influence of ascent, descent, etc., or by influence of science. This was a tendency in early Modern English, also in scythe and for a time threatening to make scite and scituate.