May I suggest a look at the word in parts?enrange (verb) : en-rage; en (prefix) = make/cause (in/within); rage (noun) = intense/strong anger; enrage = cause intense anger in

incense (verb) : in-cense; in(prefix) = make/cause (in/within); cense(verb) = ordorize/’smoke’; (be) incensed = made/caused to ordorize/’smoke’ (like incense-sticks)

enrol(verb): en-roll; en(prefix) make/cause (in/within); roll(noun) = a list on paper turned into concentric circular tube/’rolled’ up paper (like in ‘scroll’ = scribe’s-roll); enroll = make (one) into (the/a) list, register

A lot of English words fall into this kind of word construction (= สนธิ to make new words): en-able, in-furiate (from fury=anger), en-shrine, in-tense (like ‘tension’),…

BTW, suffix ‘-en’ usually means ‘made of/from’/’caused by/with’. For examples gold-en, wood-en, strength-en, height-en,… [And some like ‘enliven’= en-life-en].;-)