Triad, tetrad. Occlude the portal through which entry is gained.
Pentad, hexad. Lift from the ground twigs and small branches.
Heptad, octad. Position those twigs and branches in perfect alignment, a paragon of parallelism.
Nonad, decade. One large and obese female domestic edible fowl.
Undecade, dozen. Unearth and excavate.
Tredecade, quattuordecade. Unmarried females wooing prospective mates.
Quindecade, sexdecade. Unmarried females within the confines of that room set aside for the preparation and/or consumption of foodstuffs.
Septendecade, octodecade. Unmarried females in attendance at the royal court.
Novemdecade, vigintad. The greatest enlargement of my alimentary canal has nothing to process.
Speaking of which, prithee, mademoiselle, could you put into practice your eleemosynary propensities and bring yourself to spare one setting of the nagmaal for to surfeit that enlargement?