The word 'successively' is built upon the Latin verb 'succedere', meaning 'to come after, to follow'. This verb itself is a compound of 'sub-' (meaning 'under' or 'closely after') and 'cedere' (meaning 'to go'). The core concept is one of movement following closely behind. The adjective-forming suffix '-ive' was added to create 'successive', describing things that follow in sequence. Finally, the adverbial suffix '-ly', of Germanic origin, was appended to modify the manner of an action. Thus, the literal journey from 'going closely after' to the modern abstract meaning of 'in an unbroken sequence' is clearly traced through its morphological components.

Structure: suc (under, after) + cess (go, move) + ive (adjective suffix) + ly (adverb suffix) - suc: A variant of the Latin prefix 'sub-', meaning 'under, after, following'. - cess: From Latin 'cedere' (to go, move, yield), appearing in English as the bound root '-cess-'. - ive: A suffix of Latin origin ('-ivus') used to form adjectives meaning 'having the nature of'. - ly: An Old English suffix ('-lice') used to form adverbs from adjectives.