There's multiple words in the Koine Greek language that can be used to refer to a cousin, such as
"ἀνεψιός" (anepsios), which has the specific familial definition "a nephew, cousin," as well as
"συγγενίς" (syngenis),
"συγγενής" (syngenēs),
"ἀδελφός" (sing. adelphos; pl. ἀδελφοὶ adelphoi), and
"αδελφαι" (sing. ἀδελφή adelphē; pl. αδελφαι adelphai), which all have the broader familial definition "a kinsman/kinswoman, relative," and can be used to refer to various types of kin, including cousin.
In Lk. 1:36, in the original language used (Koine Greek), Elizabeth isn't specifically called
"cousin," but rather "
συγγενίς" (syngenis), which again has the broad familial definition "a kinswoman, female relative," and thus can refer to a sibling, cousin, niece, or aunt, etc. Can you provide evidence that shows Mary's kinswoman/relative, Elizabeth, was Her cousin? I can.
In Matt. 13:55/Mk. 6:3, in the original language used (Koine Greek), Joseph, Simon, James, and Judas (Jude/Thaddeus) aren't specifically called
"siblings," nor
"half-brothers," but rather "
ἀδελφοὶ" (adelphoi)
, which has the broad familial definition "kinsman, or relative," and thus can refer to a sibling, cousin, nephew, or uncle, etc. Can you provide evidence that proves Jesus’s kinsmen/relatives Joseph, Simon, James, and Judas (Jude/Thaddeus) were His siblings? I know you can't, because in my thread
Were they Jesus’s siblings?, I’ve proven Jesus’s kinsmen/relatives Joseph, Simon, James, and Judas (Jude/Thaddeus) were the sons of His mother's spouse's brother, Alphaeus, thus making them His cousins.