In India, even before we get to cousins, we have distinct terms for father/mother's siblings of same and opposite genders. Same gender elder/younger siblings of your parents have different pronouns that translate this way in Kannada (Language of Karnataka state):
senior-father - ದೊಡ್ಡಪ್ಪ (doddaappa) for elder brother of father,
senior-mother - ದೊಡ್ಡಮ್ಮ (doddammA) for elder sister of mother,
junior-father – ಚಿಕ್ಕಪ್ಪ (chikkappa) for younger brother of father,
junior-mother - ಚಿಕ್ಕಮ್ಮ (chikkammA) for younger sister of mother.
Their spouses get the same seniority title with appropriate gender.
Then, opposite gender siblings of your parents get pronouns that are more conceptually closer to uncle/aunt. But here, there's no seniority distinction.
senior-father - ದೊಡ್ಡಪ್ಪ (doddaappa) for elder brother of father,
senior-mother - ದೊಡ್ಡಮ್ಮ (doddammA) for elder sister of mother,
junior-father – ಚಿಕ್ಕಪ್ಪ (chikkappa) for younger brother of father,
junior-mother - ಚಿಕ್ಕಮ್ಮ (chikkammA) for younger sister of mother.
Their spouses get the same seniority title with appropriate gender.
Then, opposite gender siblings of your parents get pronouns that are more conceptually closer to uncle/aunt. But here, there's no seniority distinction.