SUMMARY
In the Hittite proterokinetically declined adjective palhi- and the Proto-Slavic noun *pol'e (n.) it is possible to recognize the old interparadigmatic connection from the earlier protolanguage period, when the i-stem and u-stem neuter nouns were declined acrostatically, but their homophone adjectives proterokinetically (Watkin's model). This relationship is all the more valuable because until now such examples in IE languages have been recognized only among u-stem formations.