1. A language processing apparatus, comprising: means for performing a grammatical processing including at least morphological analysis to a sentence in a prescribed first language to be input; a dictionary useable at the time of morphologic analysis and stored in a machine-readable storage medium in a machine readable manner for storing morphemes in said first language; and means for aiding a user in producing a part of said dictionary, said dictionary producing aiding means including: means for obtaining a first form of a target morpheme which the user desires to have said dictionary store; means for receiving a second form of said target morpheme input by the user from a prescribed input region; manually operable input means for editing, at an input position which can be moved, a character string displayed on said prescribed input region; means for displaying said first form on said prescribed input region and positioning a cursor indicating the input position at a character location with the highest estimated possibility that said first form and said second form are different, prior to receiving said second form; and means for storing said first form and said second form in association with each other into said use dictionary.
2. A language processing apparatus as recited in claim 1, wherein said means for positioning the input position includes means for displaying said first form on said input region, means for specifying a part of speech categorizing said target morpheme, means for estimating a location with the highest estimated possibility that the form of said second morpheme is different from the form of said first morpheme depending upon the kind of said specified part of speech, and means for positioning the input position to a corresponding position on said input region based on the result of the estimation by said estimation means.