A consonant cluster used initially in words or in second elements of compounds and after initial s. It usually represents phonetic [kw] in the reflexes of OE words in cw-, cu-, qu-, ON words in kv-, L……

For all words beginning with sw- from here to the end of this volume [of the print MED], the practice of the MED is to record all variant forms except those beginning with su-; forms with su- are……

A consonant cluster used initially in well over 200 headwords, the great majority of which are derived from OE hw-, including some of the most common pronouns, adjectives, adverbs, and conjunctions in……