Etope, from μετι and ὁπὴ, foramen, intervallum. Signifies the Front; it’s the Name of the empty spaces in Freeze of the Dorick Order, between the Triglyphs.
Modillion signifies in Italian a little Model, a little Measure: It’s that part which is so often repeated in the Corinthian and Compound Cornice, which supports the Projecture of the Larmier or Drip. This part is called the little Model in respect of the great Model, which is the Diameter of the Pillar; for as the Proportion of an Edifice depends on the Diameter of the Pillar, so the greatness of the Modellians, their number, and their space or distances, must have a just Proportion or true Relation to the whole Fabrick.
Module or Model is a measure that is made use of to regulate all the Proportion of the Fabrick: In the Dorick Order it’s half the Diameter of the Pillar; in other Orders the Module is the whole Diameter.
Monoptere, from μόνος solus, and πτὲρον ala; is that which has but one Wing or Isle; it was a sort of a round Temple, whose Roof was supported by Pillars only.
Mutuli, from μὺτιλος, which signifies defect, as being made thinner, and more abated above than below. It’s a sort of a Modellion in the Cornice of the Dorick Order.
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Oyan is the middle part of the Flooring of the Ancients. They made it with Ciment, which they put betwixt a Lay or Bed of Pibbles, cimented with Mortar made of Lime and Sand.