[1855–60; heresy + -o- + -logy]This word is first recorded in the period 1855–60. Other words that entered Englishat around the same time include: barrage, boilerplate, pickup, pipeline, superheat-o- is the typical ending of the first element of compounds of Greek origin (as -i- is, in compounds of Latin origin), used regularly in forming new compounds with elementsof Greek origin and often used in English as a connective irrespective of etymology(Franco-Italian; geography; seriocomic; speedometer); -logy is a combining form used in the names of sciences or bodies of knowledge. Other wordsthat use the affix -logy include: ethnology, genealogy, thanatology, tropology, typology