оурокъ

Etymology
From,.

Noun

 * 1) instruction
 * 2) arrangement, condition
 * 3) expense, charge, cost
 * 4) payment, due
 * 5) * lines 162-164, from the Primary Chronicle:
 * "cu"

- и иде вольга по дерьвьстѣи зємли съ сꙑномъ своимъ и съ дружиною оуставлѧющи оуставꙑ и оуроки.