-as as in Maskoliūnas indicates a male and equates to Mr. -ienē as in Maskoliūnienē indicates wife and equivalent to Mrs.
– aite, – yte, – ute, – te – as in Maskoliūnaite are suffixes used for unmarried women.
“-ų” as in Maskoliūnų & “-ai” as in Maskoliūnai means plural or family.
Šema [a family is]
Lithuanian male and female names are different grammatically. Almost all Lithuanian female names end in the vowels -a or -ė, while male names always end in -s, and rarely in a vowel -a. When the male name ending in -a has its female counterpart, it ends in -ė, such as Jogaila and Jogailė. Female double-stemmed Lithuanian names always end in -ė.
One of the peculiarities which strikes the foreigner is the difference between the male surnames and those of married and unmarried women.
The surnames of married women are formed by dropping the ending of the male surname and adding the suffix – iene, for example, Katilius – Katiliene, Varnas – Varniene, Zujus – Zujiene (or Zujuviene). Thus, the suffix – iene carries the same meaning as the English Mrs. used before a married woman’s name.
The surnames of unmarried women are formed by adding the suffixes – aite, – yte, – ute, – te, for example, Katilius – Katiliute, Zujus – Zujute, Varnas – Varnaite, Banys – Banyte.