sagger

[ sag-er ]
/ ˈsæg ər /

noun

a box or case made of refractory baked clay in which the finer ceramic wares are enclosed and protected while baking.
a hard unlayered clay underlying many coal beds.

verb (used with object)

to place in or on a sagger.
Also sag·gar, seggar.

Origin of sagger

First recorded in 1680–90; perhaps variant of safeguard

British Dictionary definitions for saggar

saggar

sagger

/ (ˈsæɡə) /

noun

a clay box in which fragile ceramic wares are placed for protection during firing

Word Origin for saggar

C17: perhaps alteration of safeguard