from the German Kronprinzessin, and then internally analyzed as kron- (crown) princ- (prince) edzino (wife). However, Vilborg's Etimologia Vortaro argues that edzino is more likely to have come from Yiddish רביצין rebbetzin (rabbi's wife, Mrs.), reanalysed as rebb-etzin, and that Zamenhof made up the German etymology after the fact to avoid anti-Semitic prejudice against Esperanto. That would mean that edz- ultimately derives from the Slavic feminine suffix -its(a). Regardless, few words have histories this convoluted. The correlatives, although clearly cognate with European languages (for example, kiel, tiel with French quel (which), tel (such); ĉiu with Italian ciascun (each), and -es with the German genitive -es, etc.), have been analogically leveled to the point that they are often given as examples of Esperanto innovations. This is especially true for the indefinite forms like io (something), which were devised by iconically removing the consonant of the ki- and ti- forms. Likewise, the restriction of the Italian and Greek masculine noun and adjective ending -o to nouns, and the feminine noun and adjective ending -a to adjectives and the article la, is an Esperanto innovation using existing forms. Some smaller words have been modified to the extent that they're difficult to recognize. For example, Italian a, ad (to) became al (to) under the influence of the contraction al (to the), to better fit the phonotactics of the language, and in a parallel change, Latin ex (out of) and Slavic od (by, than) may have become el (out of) and ol (than), though the latter also has the German parallel als. Inflections The Greek origin of the nominal inflections can be seen in the Greek a-declension nouns such as the word for "muse": musa, plural musai, accusative musan, which in Esperanto is muzo, muzoj, muzon. Greek o-declension words such as logos, logoi, logon (word) are similar, as are adjectival declensions such as aksia, aksiai, aksian (worthy). Greek was perhaps also the model of stressed i in Esperanto words like familío (family), which follows the common Greek pattern of aksía (worthy) and oikíai (houses). Esperanto has a/i/o ablaut for present/past/future tense, which has partial parallels in Latin present amat, perfect amavit, and the corresponding infinitives amare, amavisse. Otto Jespersen said of the ablaut, This play of vowels is not an original idea of Zamenhof's: -as, -is, -os are found for the three tenses of the infinitive in Faiguet's system of 1765; -a, -i, -o without