FromMiddle English-ical, a combination of-ic fromOld French-ique, fromLatin-icus, related toAncient Greek suffixAncient Greek-ικός(-ikós), plus-al fromLatin adjective suffix-alis, orOld French-el.Bysurface analysis,-ic +-al.
-ical (adjective-forming suffix,comparativemore-ical,superlativemost-ical)
Often redundant to the use of-ic alone; for example,mythic andmythical are identical in meaning. Likewise for-etic, as inphonetic andphonetical. For words that naturally end in-ic such asmagic andstatistic, the addition is only of-al.