H6045–עִנְיָן–in.yan

And I gave my heart to seek and search out by wisdom concerning all things that are done under heaven: this grievous labor hath God given to the sons of man to be exercised with it.

עִנְיַ֣ן 'in.Yan “[is] a task of”

For all his days are sorrows, and his labor grief; yes, his heart taketh not rest in the night. This is also vanity.

עִנְיָנ֔וֹ (עִנְיָנ֔) in.ya.N “task”

For God giveth to a man who is good in his sight, wisdom, and knowledge, and joy: but to the sinner he giveth toil, to gather, and to amass, that he may give to him that is good before God. This also is vanity and vexation of spirit.

עִנְיָ֜ן 'in.Yan “a task”

I have seen the labor, which God hath given to the sons of men to be exercised in it.

הָֽעִנְיָ֗ן (עִנְיָ֗ן) 'in.Yan “task”

There is one alone, and there is not a second; yes, he hath neither child nor brother: yet is there no end of all his labor; neither is his eye satisfied with riches; neither saith he, For whom do I labor, and bereave my soul of good? This is also vanity, yes, it is a grievous labor.

וְעִנְיַ֥ן (עִנְיַ֥ן) 'in.Yan “[is] a task of”

For a dream cometh through the multitude of business; and a fool's voice is known by a multitude of words.

עִנְיָ֑ן 'in.Yan “business”

But those riches perish by evil labor: and he begetteth a son, and there is nothing in his hand.

בְּעִנְיַ֣ן (עִנְיַ֣ן) 'in.Yan “a business of”

When I applied my heart to know wisdom, and to see the business that is done upon the earth: (for also there is that neither day nor night seeth sleep with his eyes:)

הָ֣עִנְיָ֔ן (עִנְיָ֔ן) 'in.Yan “task”