From Longman Dictionary of Contemporary Englishsummon up ↔ something phrasal verb formal1 if something summons up a memory, thought, or image, it makes you remember it or think of it SYN conjure up The smell summoned up memories of family holidays by the sea.2 to try very hard to have enough courage, energy, or strength, because you need it Ruth took a deep breath, summoned up her courage, and told him the truth. → summon→ See Verb table
Examples from the Corpus
summon up ↔ • Feeling small and insignificant, Chesarynth summoned up the courage to move.• He summoned up childhood memories and a long love for a part of his musical heritage in a piece called Blues Suite.• It seems to me a healthy slogan; and it summons up a cheerful and invigorating mood.• New challenges summon up fresh resources, or expose areas in which resources are lacking.• Some feelings are more easily dismissed than others, and some are more easily summoned up.• Surely this night the unexpected would happen, surely she had summoned up the unexpected.• The keen blustery morning summoned up exactly the braced mood she sought to capture.• Will they summon up the energy to transfer to the Isas offered by smile or the Nationwide? 