stato-, stat-, sta-, -static, -stasi, staso-, -stasis, -stasia, -stacy, -stitute, -stitution, -sist

(Latin: standing, to stay, to make firm, fixed; cause to stand, to put, to place, to put in place, to remain in place; to stand still)

understatement
unstable
unstably
venostasis

Related word families intertwined with "to place, placing, to put; to add; to stay; to attach" word units: fix-; pon-; prosth-; the-, thes-.