stylo-1 Also styli-.
The Latin word referred to a writing instrument, and also figuratively to a manner or technique of literary composition. The latter sense is preserved in English style, and the former in stylus. Both words were respelled under the influence of Greek stulos, a column or pillar, whose meaning has also affected the usage of style.
Examples of stylo- in various senses include stylometry, the statistical analysis of variations in literary style between one writer or genre and another; stylophone, a miniature electronic musical instrument that employs a stylus; and stylograph, a kind of fountain pen having a fine perforated tube instead of a split nib. The adjective styliform refers to something slender and pointed.