adiciō

From ad- (“to, towards, at”) +‎ iaciō (“I throw, hurl”).

(Classical) IPA^(key): /aˈdi.ki.oː/, [äˈd̪ɪkioː]
(Classical) IPA^(key): /adˈi̯i.ki.oː/, [äd̪ˈi̯ɪkioː]
(modern Italianate Ecclesiastical) IPA^(key): /adˈji.t͡ʃi.o/, [äd̪ˈjiːt͡ʃio]
Note: both syllabifications occur when allowed by the meter; the shorter form probably original, the longer an analogical restoration, as with other compounds of iaciō.^[1]

adiciō (present infinitive adicere, perfect active adiēcī, supine adiectum); third conjugation iō-variant

to throw, hurl, cast or fling an object to, towards, or at
to direct one's mind, eye or attention to, turn to
adicere animum ad aliquid (or alicui rei) ― to turn the mind towards something

adicere animos ― inspire the courage
to attach, insert; apply, assign; add, increase, add to; intensify
(in auctions) to add to a bid, outbid
to add (as a proviso); add to something that has already been said [ quotations ▼]
(grammar, with dative) to modify (another word) [ quotations ▼]