그리고
geurigo · TOPIK 1
and, and then
그리고 = 그리하고: do like that, and... (then the next thing)
Etymology: a contraction of 그리하고, built from 그리 (like that) + 하다 (do) + the connective ending -고 (and). The same -고 joins verbs mid-sentence, so 그리고 is that ending turned into a standalone word that starts a new clause.