pillaring
/ˈpɪlərɪŋ/noun
1The action of furnishing or supporting something with pillars; the action of forming something into a pillar. Also concrete : work consisting of pillars ( rare ).
2 Chemistry and Mineralogy. The occurrence or development of a pillared structure.
Origin
Early 17th century; earliest use found in Robert Parker (?1564–1614), religious controversialist. From pillar + -ing.