FROM STRONG’S GREEK DICTIONARY (1890)

Strong’s Greek Dictionary (1890) — public domain, printed whole.

themelioo θεμελιόω — them-el-ee-o'-o — from 2310; to lay a basis for, i.e. (literally) erect, or (figuratively) consolidate:--(lay the) found(- ation), ground, settle.

see GREEK for 2310