|Kanji in this term|
Origins somewhat obscure.
The former tana portion may be from 棚 (tana, “a shelf, or a board placed lengthwise in a bridge”), in reference to an ancient ritual whereby a maiden would weave a special cloth on a hata in order to secure a bountiful harvest, as an offering for a god coming across a body of water via a tana. A related theory states that tana is instead an alteration of 種 (tane, “seed”). Yet another theory states that tana is an alteration of 手 (te, “hand”) + な (na, from possessive particle no).
Alternative forms 
- the Tanabata Japanese star festival
- a type of loom (the original meaning)
- a type of weaving
- by extension, a weaver
- (figuratively) any extremely rare visit, or the person so visiting