gatear
crawl
gato
cat
+
-ear
verb suffix
Gatear means to crawl and can be thought of as gato0 (cat0) + -ear1 (verb suffix1), like a cat moving on all fours.
verb
  1. crawl
    To crawl or move on all fours, typically used for babies or young children
    El bebé empezó a gatear a los seis meses. // The baby started to crawl at six months.