h₂erk-mn̥-
“an enclosure, contained space”Widely acceptedcontainmentspace
arc, ark, arcanum
Nominal of *h₂erk- giving Latin arca/arcus, English arc, ark, arcanum.
h₂erk-“to hold, contain, guard”h₂erk-tó-“held back, enclosed”h₂erǵ-₃“to close, shut, confine”h₂ew-mn̥-₂“a breathing, air current”kelh₁-eyo-“to keep hiding, concealing”kew-mn̥-“a hollow, cavity, enclosure”pleh₂-tú-“breadth, width, flat expanse”ǵheh₂-“to gape, yawn, open wide”