Greek papyrus letters preserve not only instances of the replacement of the dative case; they also show the use of the dative instead of the accusative case as direct object and disjoint infinitival subject. This interchange is mostly found in epistolary phrases, namely the salutation formula (ἀσπάζομαί σε) and the initial (εὔχομαί σε ὑγιαίνειν) and final (ἐρρῶσθαί σε εὔχομαι) health wishes. The phonetic similarity of the pronouns might have created the circumstances for case confusion. Contamination of the constructions reflects the difficulties of the scribes to construct conservative epistolary phrases and, thereby, diachronic phraseological variation might reflect language change. In salutation formulas, the use of a dative Addressee could be explained by analogical overextension from the category of communication verbs taking a dative complement. The decline of the accusative and infinitive construction might be one of the reasons why the accusative disjoint infinitival subject is replaced by the dative case in health wishes.

中文翻译：

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希腊纸莎草书信体书信公式中宾格互换的与格

希腊纸莎草书信件不仅保留了与格替换的实例；他们还展示了使用与格而不是宾格作为直接宾语和不相交的不定式主语。这种互换主要出现在书信短语中，即称呼公式（ἀσπάζομαί σε）和声母（εὔχομαί σε ὑγιαίνειν）和韵母（ἐρρῶσθαί σε εὔχομαι）代词的语音相似性可能造成了大小写混淆的情况。结构的污染反映了抄写员构建保守书信短语的困难，因此，历时的短语变化可能反映了语言的变化。在称呼语中，与格收信人的使用可以通过使用与格补语的交际动词类别的类比过度扩展来解释。宾格和不定式结构的衰落可能是健康愿望中宾格不相交不定式主语被与格取代的原因之一。