prothetically
/prɒˈθɛtɪkli/ /prə(ʊ)ˈθɛtɪkli/Now rare
adverb
1In a prothetical manner.
2 Grammar. By prothesis or prefixion.
Origin
Mid 19th century; earliest use found in Fraser's Magazine for Town and Country. Partly from prothetic + -ally, and partly from prothetical + -ly; compare -ically.