From Latin frequentia, from frequens.
frequency (plural frequencies)
You can also try words with the phrase FREQUENCY, words starting with the letters FREQUENCY, or words ending in the letters FREQUENCY.
Words… ending with q, starting with q, starting with qa, starting with qo, with two letters, starting with x, starting with j, ending with j,
Some random searches:
UCXMJH, DMRIJ, JVYPBM, GNAIJJR, ADZGBKZ, FMJYAC,