ˈepəˌstīl noun
also ep·i·sty·li·um ˌepəˈstīlēəm
( plural epistyles ˈ ̷ ̷ ̷ ̷ˌstīlz ; or episty·lia ˌ ̷ ̷ ̷ ̷ˈstīlēə)
Etymology: Latin epistylium, from Greek epistylion, from epi- + Greek stylos pillar + -ion (diminutive suffix) — more at stow
: architrave 1