12. yclept is the participle of the obsolete verb Clepe, with the ancient prefix y, as in ychained, Hymn on the Nativity 155. 15. two sister Graces more.
"Minor Poems by Milton"
John Milton
And there is the vessel of stone, as it were of marble, that men Clepe enydros, that evermore droppeth water, and filleth himself every year, till that it go over above, without that that men take from within.
"The-Travels-of-Sir-John-Mandeville"
Mandeville, John, Sir
And on the left side of the Hill of Carmel is a town, that men Clepe Saffre, and that is set on another hill.
"The-Travels-of-Sir-John-Mandeville"
Mandeville, John, Sir