doth
v. C2 Proficiency US //ˈdɔθ// UK //dˈʌθ// doth
v. an old-fashioned way of saying 'does'. You will mostly see this in very old books or poems by writers like Shakespeare.
v. the archaic third-person singular present tense of 'do'. Used exclusively in historical, poetic, or liturgical contexts.
The lady doth protest too much.
In the old poem, the poet writes that the sun doth shine upon the valley.
Usage
Archaic form of 'do'; used with a singular subject like 'he', 'she', or 'it'.
Pitfall
They doth goThey do go'Doth' is strictly for third-person singular subjects; plural subjects require 'do'.