h₂erk-mn̥-

“an enclosure, contained space”

Widely acceptedcontainmentspace

arc, ark, arcanum

Nominal of *h₂erk- giving Latin arca/arcus, English arc, ark, arcanum.‍‌‌‍‌‌‌‌‌‍‌‌‌‍‍‌‍‍‍‍‍‌‍‍‍‍‍‍‍‍‌‍

ǵheh₂-“to gape, yawn, open wide”ǵheh₂-w-“to gape, be wide open (extended)”h₂erǵ-₃“to close, shut, confine”h₂erk-“to hold, contain, guard”h₂erk-tó-“held back, enclosed”h₂ew-mn̥-₂“a breathing, air current”kelh₁-eyo-“to keep hiding, concealing”ḱew-H-“to swell, be powerful”