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English word profound comes from Latin fundus, Latin pro, and later Old French profont ((figuratively) deep; profound. Deep (of a liquid).)
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fundus (Latin)
An authority. Bottom. Farm; piece of land; estate. Foundation. Ground.
pro (Latin)
About. According to. As befitting. As, like. Before. For. In front, instead of. On behalf of.
profundus (Latin)
Boundless, vast; bottomless. Deep, profound. Intense, extreme, profound; immoderate. Obscure, unknown, mysterious. Thick, dense.
profont (Old French)
(figuratively) deep; profound. Deep (of a liquid).
parfont (Old French)
profond (Middle French)
Bottom (lowest part) Deep (of water, etc.).
profond (French)
Deep. Profound.
parfond (Middle French)
Deep.
profound (Anglo-Norman)
profound (English)
(obsolete) To cause to sink deeply; to cause to dive or penetrate far down.. (obsolete) To dive deeply; to penetrate. (obsolete) An abyss.. (obsolete) The deep; the sea; the ocean. Bending low, exhibiting or expressing deep humility; lowly; submissive. Characterized by intensity; deeply felt; pervading. Descending far below the surface; opening or reaching to great depth; deep.. [...]