tigronus
Trigonus, Species patibuli versatilis suspendendis movendisque in foco lebetibus. S. Willhelmi Constitut. Hirsaug. lib. 1. cap. 98 :
Duo quoque Tigroni uterque de tribus lignis licet imparibus angulis sint facti, qui in modum ostiorum huc et illuc versari possint : in his pendent catenæ, quibus caldaria suspenduntur, etc.