Jakob Jakobsen, An Etymological Dictionary of the Norn Language in Shetland…
“ Edm. has: “awmucks, a kind of fish found upon sandy beaches; they possess the power of inflating their bodies. There are ‘ling-awmucks’ and ‘skate-awmucks’ and ‘shell-awmucks’.” No further confirmation of the sense is given by Edm. amos [āmȯs] , sb., 1) alms; is in form the L.Sc. aumous, awmous = almous (alms) , but is used in Shetl. frequently of alms which is promised at sea (in hope of getting better fishing or in time of distress) , either to a person (the first person one meets if one again reaches land) or particularly to a church, like Fær, “olmusa” ”
