This is the 979th most frequent Icelandic word.
aukast
To increase or grow.
Here, 'aukast' is used in its causative form 'aukið', showing an increase in joy.
Góð skemmtun getur aukið gleði fólks.
Good entertainment can increase people's joy.
In this example, 'aukast' is reflexive, indicating that interest has grown autonomously.
Það er ánægjulegt að sjá hvernig áhugi nemenda hefur aukist.
It is delightful to see how students' interest has increased.
Here, 'aukast' is used as a direct intransitive verb, referring to the growth of strength.