Green’s Dictionary of Slang

till v.

to have sexual intercourse.

c.1642		T. Killigrew Parson’s Wedding (1664) II vii: A pox, the women will never consent to it; they’ll be till’d to death first.
1688		J. Crowne City Politicks I i: My fair love, like an o’er fertile field, May breed rank weeds, if she be idly till’d.
1740		‘Roger Pheuquewell’ Description of Merryland (1741) 41: The Man takes Possession of his Lot, and commonly begins to till it before he sleeps.
1788		Harris’s List of Covent-Garden Ladies 24: This is a diagreeable cirumstance to those who may not wish to till in vain.

In derivatives

tillage (n.)

sexual intercourse.

1597–8		Donne ‘Sappho to Philaenis’ 1 125: Thy body is a naturall Paradise, / In whose selfe, unmanur’d, all pleasure lies, / Nor needs perfection; why shouldst thou than Admit the tillage of a harsh rough man?
1662		‘M.W.’ Marriage Broaker II i: The maiden-beautie, call’d Virginia: And this is thought to be fertile land, Now onely wanting the good husband’s tillage.
1688		J. Crowne City Politicks I i: My fair love [...] She shall have all the tillage I can give.
1703		N. Ward Madam Coming-Sir 397: It was greatly fear’d, that Man who had first the Tillage of the Ground, must have been call’d in to have Reap’d the Harvest.