prosecuteyoudaoicibaDictYouDict[prosecute 词源字典]
prosecute: [15] If you prosecute someone, etymologically you ‘pursue’ them. The word comes from prōsecūt-, the past participial stem of prōsequī ‘pursue’, a compound verb formed from the prefix prō- ‘forward’ and sequī ‘follow’ (source of English sequal, sequence, etc). The word’s legal application emerged in the late 16th century.
=> pursue, sequal, sequence, suit[prosecute etymology, prosecute origin, 英语词源]
secondyoudaoicibaDictYouDict
second: [13] Latin secundus originally meant ‘following’ – it was derived from sequī ‘follow’, source of English sequence – and only secondarily came to be used as the ordinal version of ‘two’. English acquired it via Old French second, employing it to take over part of the role of other, which until then had denoted ‘second’ as well as ‘other’.

Its noun use for ‘sixtieth of a minute’, first recorded in English in the 14th century, comes from medieval Latin secunda minuta, literally ‘second minute’ – a minute was a ‘sixtieth part’, and so a ‘second minute’ was a ‘sixtieth of a sixtieth’. Latin secundus was also used for ‘favourable’, and in this sense the verb secundāre was formed from it, meaning ‘favour’.

English acquired it via French seconder as second ‘support’ [16]. (The differently pronounced second ‘transfer to a different job’ [19] comes from the French phrase en second ‘in second rank’.)
=> sect, sequal, sequence, sue, suit
sequenceyoudaoicibaDictYouDict
sequence: [14] Sequence is at the centre of a large family of English words that go back ultimately to Latin sequī ‘follow’ (others include consecutive [17], consequence [14], ensue, obsequious [15], persecute [15], prosecute, pursue, second, sect, subsequent [15], sue, and suit). Sequence itself comes from late Latin sequentia, a derivative of the present participle sequēns.

Another Latin derivative was sequēla ‘that which follows’, which has given English sequal [15]. Sequī came from the Indo-European base *seq-, which also produced Greek hépomai, Irish sechur, Lithuanian sekti, and Sanskrit sac-, all meaning ‘follow’.
=> consecutive, consequence, ensue, obsequious, persecute, prosecute, pursue, second, sect, sequal, set, sue, suit