pervade

English speakers borrowed pervade in the mid-17th century from Latin pervadere, meaning "to go through." Pervadere, in turn, was formed by combining the prefix per-, meaning "through," with the verb vadere, meaning "to go." Synonyms of pervade include permeate, impregnate, and saturate. Pervade stresses a spreading diffusion throughout every part of a whole ("art and music pervade every aspect of their lives"). Permeate implies diffusion specifically throughout a material thing ("the smell of freshly baked bread permeated the house"). Impregnate suggests a forceful influence or effect on something throughout ("impregnate the cotton with alcohol"). Saturate is used when nothing more may be taken up or absorbed ("the cloth is saturated with water").