Tico
Tico (feminine tica, plural ticos, ticas) is a colloquial term for a native of Costa Rica. Costa Ricans are usually called ticos by themselves and persons of other Spanish-speaking countries, in place of the more formal costarricenses.
There are two popular explanations of the origin of the term tico. The first is that it derives from the tendency of Costa Ricans to use -tico as the diminutive suffix in Spanish instead of the more common and widely used -ito. Literally -tico, when used as a suffix, in Costa Rican Spanish denotes something very small, as the suffix -ito would. Use of -tico versus -ito depends on the word, as not all of them would be easily adapted to -tico suffix.