Strong’s Hebrew Lexicon:

Faith: אֱמוּנָה ʼĕmûwnâh, em-oo-naw’; or (shortened) אֱמֻנָה ʼĕmunâh; feminine of H529; literally firmness; figuratively security; morally fidelity:—faith(-ful, -ly, -ness, (man)), set office, stability, steady, truly, truth, verily.

Amein? Amein!

Amein (Amen): אָמֵן ʼâmên, aw-mane’; from H539; sure; abstract, faithfulness; adverb, truly:—Amen, so be it, truth.