Ahti

Proper noun

 * 1)  The god of depths, water, and fishing in Finnish mythology.
 * 2)  A goddess in Egyptian mythology.

Etymology 1
Probably. The consonantism implies a relatively recent derivation, but based on the dialectal meaning "to hang up to dry". The god of water and fishing would have thus originally been a god that helps keep fish nets dry and thus by extension bring a good catch. Alternatively possibly borrowed from, an epithet that occurs in many names of Sami deities.

Proper noun

 * 1)  The god of depths, water, and fishing.

Etymology 2
A confluence of multiple different etymologies. Partly from the mythological name (see etymology 1), partly from (as the name of a mythical warrior) and partly from the  given name, which in turn is ultimately from. The name  (from the same Ancient Greek source) may be a fourth source (at least in eastern Finland).

Proper noun

 * 1) * 1849 (Translation 1988 by Eino Friberg) 11:1-8:
 * "fi"
 * "fi"

- Aika on Ahtia sanoa, / Veitikkätä vieretellä. / Ahti poika Saarelainen, / Tuo on lieto Lemmin poika, / Kasvoi koissa korkeassa / Luona armahan emonsa / Laajimman lahen perällä, / Kaukoniemen kainalossa.