The Oxford Names Companion, OUP "Scottish Forenames" - Donald Whyte, FGH, FSG
Notes:
English, from Latin "lovable" or "fit to be loved", a 17th century invention. It is not thought to have been directly derived from the archaic male name Amandus but they a both derived from the same Latin verb.
Thanks to Donald Whyte who provided much of the initial information for this site.