If they are unfamiliar I don't think they would be frequently used. thats like asking what is the most common rare occurence
Some examples of unfamiliar words are frond, pax, specious, and obdurate. Sinecure and retinue are two other words that aren't used commonly.
fender, nionscieceing, flailingly
The word cat is used frequently with Duck
bonjour
Some English words ending in "-or":* abhor * ardor * anchor * door
Some examples of words with complex syllables in English are "antidisestablishmentarianism," "supercalifragilisticexpialidocious," and "pseudopseudohypoparathyroidism."
Analyst. Conceptualization. Elaborate. Embellishment. Aesthetic. Perfectionist. Methodical. Some words aren't unfamiliar but that's all i could think of.
Some words do not translate from English to Korean (or from Korean to English). Those words would appear in the native language, for instance, a word in English will be the same in a Korean sentence. For example: Microsoft is cool Microsoft는 멋지다
Some English words that contain "annus" include annual, anniversary, and annuity.
Some English words borrowed from Bengali include 'jute', 'pajama', and 'thug'.
Cognates are words which are the same in English and French.
There are over a thousand words in English that have 'nat' in them; here are some examples:anatomybicarbonatechlorinatedonateeliminatefanaticgnathibernateinnatelunaticmarinatenationnativenatureornatepredominateresonatesenateterminateunfortunatevaccinate