Forest, kax.

Forehead, chi-lec.

Forgetfulness, tumbobal.

Fornication, pakkeban.

Foundation, ↄec, ↄecil.

Fraud, tabzah.

Fresh, (a thing,) ziz.

Froth, (scum,) om.

Gall, ka, kha, kah.

Giant, ahuanchac.