Luke 22:13  KJV  "And they went, and found as he had said unto them:  and they made ready the passover."

Interpretation based on the following study:  To accompany and follow moreover to possess and know in close proximity and intimacy.  Just as even according to His appointment and instruction, unfolding in His teaching to enlighten.  Indeed to prepare, provide and make ready absolutely those things ordained by God.  He is our Passover, sparing us in His sacrifice of Himself to exempt us by substitution and representation.

Greek:  apelthontes de euron kathos eireken autois kai etoimasan to pascha

Definitions/Greek Strong's numbers:

565-aperkomai:  to go off, depart, aside, apart, behind, follow, go away, pass away be past, off, away from something near, separation, cessation, completion, reversal, departure, of space, time or relation, from, out of, because, forth, upon, to accompany, appear, bring, enter, fall out, grow, resort, be set, pass, come or go

1161-de:  but, and, now, then, also, moreover, nevertheless, for, even

2147-heurisko:  to find, get, obtain, perceive, see, understand, know, to learn, seek out, cry out for, long for, to have, possess, hold, keep, grasp, seek diligently after, cry after for, desire, prefer, choose, select, receive, sincere and earnest seeking after, preference, to delight and take pleasure in, to associate in close proximity and intimacy to know, to know completely, to desire presence of that which one seeks, to be near and close with, to take into oneself, to absorb, participate and engage with, to give oneself to, to be taken, owned, occupied with, kept, to complete and perfect, to fulfill and satisfy, come to have and hold, experience, communication, meet, catch, respond, answer, enter and reach a specific state or condition or place, become, prevail, have opportunity, begin to be or do something, progress, succeed, move or come into a specific position, situation or state, reach a specified point or stage, apprehend, rewarded, acquire, study and learn, determined, achieve, contact and relationship with, arrive at destination, elect, gain

2531-kathos:  just as, even as, according to, as well as, when, with that which is joined, daily, pertaining to, concerned, after the manner of by any means, by, beside, in, following unto with all speed, like unto, as

2046-ereo:  to speak or say by word or writing, tell, command, appoint, ordain, bid, answer, bring word, call, grant, utter, pour out forth, shew forth, point out, teach, instruct, direct, Word, to flow, water, rain, to lay forth, relate in words, break silence, describe, name, put forth, bringing together of words, ask, inquiry, desire, beg, require, crave, call for, cry after, seek, search for, request, cry out after, discern, judge, determine, distinguish, make known, ascertain, enquire, declare, unfold in teaching, ask after, beseech, pray, intreat, requires an open heart to receive the message, grasp, get hold of, understand, to teach, to learn, need, enlighten, bring light, brighten, kindle, ignite, glow, shine forth, refine, be on fire, burn, mark, own, occupy, possess

2532-kai:  and, also, even, so then too, both, indeed, moreover, therefore

2090-hetoimazo:  to prepare, provide, make ready absolutely, those things which are ordained by God, authority, preparations, firm, provision, ready, fit, foundation, things made ready, in readiness, close and near at hand, present

3588-to:  the, which, who, the things, the Son, this, that, one, he

3957-paskah:  Passover, to pass over to spare, feast instituted by God commemorating the deliverance of Israel from Egypt and the anticipatory of expiatory sacrifice of Christ, Christ Himself, Easter, East, to shine, to dawn, spring forth, resurrection, to hop, skip over, spare, to hesitate, to dance, halt, limp, leap, pretermission, exemption, by substitution or representation

Definitions derived from:  The New Strong's Expanded Exhaustive Concordance of the Bible, red letter edition, Hebrew & Greek Dictionary, 2010 edition.  CWP Teacher edition Interlinear Bible.