Third-person singular simple present indicative form of express.(verb)
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Use "expresseth" in a sentence
"The acts of the will as they flow from that natural faculty, or are elicited thereby, are all physical, but as they relate to a law whence they are good or evil, they are moral; the one term expresseth their being, the other their regularity and conformity to some rule whereunto their agents are obliged."
"Lastly, we may suppose that this word expresseth the twofold nature of"
"Basically the only "medieval" joke is ending every verb in "eth," such as in the phrase, "I bloggeth about SpongeBob and expresseth my horror at how bad the episode was.""