Impressing

Present participle of impress; creating a strong favorable effect on someone or pressing something into a surface to leave a mark.

From Latin 'impressus,' past participle of 'imprimere' (to press into), combining 'in-' (into) and 'premere' (to press). The physical meaning of making marks came first, while the figurative sense of making a mental impression developed later in the 16th century.