Porthmon, n. a purveyor, a drover
Porthmona, v. to act as a drover
Porthmonaeth, n. purveyance
Porthog, n. a portcullis
Porthol, a. aiding, supporting
Portholi, v. to render supportative
Porthor, n. a porter, a door-keeper
Porthordy, n. a porter’s lodge
Porthori, v. to act as porter
Porthoriaeth, n. a porter’s office