pro-

“forward, for, before”

Widely accepteddirectionspatial

pro-, provide, produce, project

Prefixal adverb giving Latin prō-, English produce, provide, project, progress.

deyḱ-eyo-“to keep pointing, indicating”dʰewb-mn̥“depth, deep place”dʰewb-₂“to be deep, hollow”gʷeyd-eyo-“to keep seeing, watching over”gʷeyd-mn̥-“a knowing, recognized thing”h₁en-dʰo“into, within”h₁en-tero-“inner, interior”h₁epi“upon, at, near”