This study is devoted to the problem of the interrelationship between Turkic syŋar ‘direction’ and jak ~ jan "side" on the one hand, and the Khakas, Shor and Oyrot directive suffixes -jar(y) ~ -sar(y) ~ -sāra, and so on, on the other. The paper seeks to answer four questions: (1) Are jak "side" and jan id. two derivatives ultimately of the same root *√ja?; (2) How do jak "side" and sak id. compare?; (3) If it is true that jar, sar < *jagar, *sagar, how, then, should the final vowel in jary, sara, etc. be explained?; (4) How do Old Tkc. syŋar‘direction’ (also used as a directive postposition) and sar ~ jar compare?