- sesquialterSynonym of sesquialterate, 1½ times.
- sesquialteralSynonym of sesquialterate, 1½ times.
- sesquialteranSynonym of sesquialterate, in the proportion of 3 to 2 or 1½ to 1.
- sesquialterousSynonym of sesquialteral, having a band or dot occupying a third of a wing.