Strong's Hebrew #1931
še·hū

še·hū — 1 Occurrence

Ecclesiastes 2:22
HEB: וּבְרַעְי֖וֹן לִבּ֑וֹ שֶׁה֥וּא עָמֵ֖ל תַּ֥חַת
KJV: of his heart, wherein he hath laboured
INT: his striving of his heart wherein labors under