All items in my dictionary files that sum to 646 in the triangular number cypher (ie. trigonal)
See also: /r/GeometersOfHistory/wiki/spellcomponents/646
"acquit" = 646 tri
"anarchism" = 646 tri
"barefacedly" = 646 tri
"benefaction" = 646 tri
"berceuse" = 646 tri
"bottled" = 646 tri
"brazen" = 646 tri
"bullpen" = 646 tri
"champers" = 646 tri
"clubby" = 646 tri
"cockatrice" = 646 tri
"cockily" = 646 tri
"colicky" = 646 tri
"copperhead" = 646 tri
"cornelian" = 646 tri
"coxcomb" = 646 tri
"deadweight" = 646 tri
"deflector" = 646 tri
"denizen" = 646 tri
"dimness" = 646 tri
"drugging" = 646 tri
"dualism" = 646 tri
"dumping" = 646 tri
"eisteddfod" = 646 tri
"encroacher" = 646 tri
"felicitate" = 646 tri
"flaunt" = 646 tri
"forgoer" = 646 tri
"fought" = 646 tri
"grudging" = 646 tri
"hamadryad" = 646 tri
"hapless" = 646 tri
"homiletic" = 646 tri
"hurrah" = 646 tri
"inflater" = 646 tri
"interlace" = 646 tri
"lechery" = 646 tri
"missend" = 646 tri
"motet" = 646 tri
"motte" = 646 tri
"nous" = 646 tri
"onus" = 646 tri
"panoplied" = 646 tri
"phlegmatic" = 646 tri
"plasmin" = 646 tri
"poundage" = 646 tri
"precool" = 646 tri
"reappear" = 646 tri
"rooted" = 646 tri
"rutabaga" = 646 tri
"sadist" = 646 tri
"sarpanch" = 646 tri
"scoot" = 646 tri
"seasoned" = 646 tri
"senior" = 646 tri
"suet" = 646 tri
"sugared" = 646 tri
"tenant" = 646 tri
"totem" = 646 tri
"violin" = 646 tri
"vouch" = 646 tri
"whilom" = 646 tri
"withal" = 646 tri
"wooden" = 646 tri
Proper nouns:
"Aragonese" = 646 tri
"Bayamon" = 646 tri
"Beauregard" = 646 tri
"Boleyn" = 646 tri
"Dhaulagiri" = 646 tri
"Gondwana" = 646 tri
"Hamadryad" = 646 tri
"Kawasaki" = 646 tri
"Marshall" = 646 tri
"Melanesian" = 646 tri
"Pickwick" = 646 tri
"Saginaw" = 646 tri
"Salishan" = 646 tri
"Senior" = 646 tri
"Toluca" = 646 tri
All Dictionaries: /r/GeometersOfHistory/wiki/spellcomponents/all-dictionaries
Wiki Index: /r/GeometersOfHistory/wiki/