-er-

Etymology
Originally the plural ending of those nouns.

Etymology
Added before various suffixes (especially and, but also sometimes , , , , by analogy to or mistaken division of other words which end in  erole, eron, ereau, etc, where the er was part of the first element (e.g. fougerolle, fougerole, from fougère + -ole) or the entire word was borrowed from another language such as Italian (e.g. muserole, muserolle, from Italian museruola).

Interfix

 * -erelle, -eret , -erette , ,  ,
 * -erelle, -eret , -erette , ,  ,

Etymology
From.

Infix

 * 1) Used to form a noun (a tool).
 * suling → seruling
 * 1) Used to form a noun (which has, contains, or is characteristic).
 * gigi → gerigi
 * 1) Used to form a verb (repeated, having repetition, or continuous).
 * gesek → geresek
 * 1) Used to form a verb(which has, contains, or is characteristic).
 * kontang → kerontang

Infix

 * 1) Used to form a noun (a tool).
 * suling → seruling
 * 1) Used to form a noun (which has, contains, or is characteristic).
 * gigi → gerigi
 * 1) Used to form a verb (repeated, having repetition, or continuous).
 * gesek → geresek
 * 1) Used to form a verb(which has, contains, or is characteristic).
 * kontang → kerontang