-mostyoudaoicibaDictYouDict[-most 词源字典]
superlative suffix of adjectives and adverbs, Middle English alteration (by influence of unrelated most) of Old English -mest, a double superlative, from -mo, -ma (cognate with Latin -mus; compare Old English forma "first," meduma "midmost") + -est.[-most etymology, -most origin, 英语词源]