(This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium.) Compare feidhm f (“function; use, service; work, office, duty; undertaking, task; attempt, effort; achievement, prowess; need”).
feidhmeannas m (genitive singular feidhmeannais)
Note: Certain mutated forms of some words can never occur in standard Modern Irish.All possible mutated forms are displayed for convenience.