primeramente
firstly
primero
first
+
-mente
adverb suffix (equivalent to -ly)
Primeramente means firstly and is formed by combining primero0 (first0) with the suffix -mente1 (adverb suffix (equivalent to -ly)1).
adverb
- firstlyFirstly, in the first placePrimeramente, debemos analizar la situación. // Firstly, we must analyze the situation.